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Download ALLIANCE 30 Pound Capacity Service manual
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Troubleshooting Drying Tumblers Stacked 30 Pound Capacity Stacked 45 Pound Capacity Starting Serial No. 0602004144 Refer to Page 5 for Model Numbers HIGH TEMP MED TEMP STAR T LOW TEMP NO HEAT 25 C 1 SELEC TEMP T 2 INSER COIN T 3 PUSH START 1 SELEC TEMP T 2 INSER COIN T 3 PUSH START HIGH TEMP MED TEMP STAR T LOW TEMP NO HEAT 25 C T464PZ3A www.comlaundry.com Part No. 70304901R5 September 2009 Table of Contents Section 1 – Safety Information ...............................................................3 Locating an Authorized Service Person ................................................5 Safety Warnings and Decals..................................................................5 Safety Precautions for Servicing Tumblers ...........................................5 Section 2 – Introduction ..........................................................................6 Model Identification ..............................................................................6 Serial Plate Location..............................................................................7 Customer Service...................................................................................7 Wiring Diagram.....................................................................................7 How A Tumbler Works .........................................................................8 Section 3 – Troubleshooting....................................................................9 1. Tumbler Does Not Start ..............................................................10 2. Motor Does Not Start..................................................................11 3. Motor Overload Protector Cycles Repeatedly ............................12 4. Motor Runs But Cylinder Does Not Turn...................................13 5. Motor Does Not Stop ..................................................................14 6. Burner Does Not Ignite ...............................................................15 7. Burner Ignites and Goes Out Repeatedly....................................18 8. Burner Does Not Shut Off ..........................................................19 9. Clothes Do Not Dry ....................................................................20 10. Tumbler Overheating ..................................................................22 11. Burner Not Burning Properly......................................................23 12. Loading Door Opens During Operation......................................24 13. Cylinder Continues to Spin with Door Open ..............................25 14. Coin Does Not Fall into Coin Vault or Coin Drop Sensor Does Not Register That Coin Has Been Entered26 Section 4 – Adjustments ........................................................................27 15. Loading Door Switch ..................................................................27 16. Loading Door Strike....................................................................27 Section 5 – Micro Display Control (MDC) Troubleshooting.............28 Models with BC, BG, BL, BX and BY Control Suffixes 17. Coins Ignored When Entered......................................................28 18. Control Has No Display..............................................................29 19. Door Open Indicator ...................................................................31 20. Motor Will Not Start/Run ...........................................................33 21. Unit Will Not Heat – Gas............................................................37 22. Unit Will Not Heat – Steam (T30 Models Only)........................40 23. Unit Will Not Heat – Electric (T30 Models Only) ....................43 24. Error Codes .................................................................................46 Gas and Steam Models Control Circuit Schematic.................................................................47 Control Circuit Connection Diagram ................................................48 Control Box Schematic .....................................................................49 Control Box Connection Diagram ....................................................50 © Copyright 2009, Alliance Laundry Systems LLC All rights reserved. No part of the contents of this book may be reproduced or transmitted in any form or by any means without the expressed written consent of the publisher. 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 1 Electric Models Control Circuit Schematic.................................................................51 Control Circuit Connection Diagram ................................................52 Contactor Box Schematic..................................................................53 Contactor Box Connection Diagram.................................................54 Section 6 – NetMaster Troubleshooting ..............................................55 Models with NC, NJ, NR, NX, NY, ZC, ZR, ZX and ZY Control Suffixes 25. No Infra-red (IR) Communication ..............................................55 26. Coins Ignored When Entered......................................................56 27. Control Has No Display..............................................................57 28. Door Open Indicator ...................................................................60 29. Motor Will Not Start/Run ...........................................................64 30. Unit Will Not Heat – Gas............................................................70 Section 7 – Hybrid Timer Control Troubleshooting ..........................74 Models with QT, SD and SX Control Suffixes 31. Coins Ignored When Entered......................................................74 32. Control Has No Display – OPL Models .....................................75 33. Display Flashes “dr” With Door Closed – OPL Models ............78 34. Vend Satisfied, No In Use LED – Coin Models .........................81 35. In Use LED Lit, No Motor Run – Coin Models .........................85 36. Motor Will Not Start/Run – Coin Models ..................................88 37. Motor Will Not Start/Run – OPL Models...................................93 38. Unit Will Not Heat – Gas – Coin Models...................................98 39. Unit Will Not Heat – Gas – OPL Models .................................101 40. Unit Will Not Heat – Steam – OPL Models (T30 Models Only) ... 104 41. Unit Will Not Heat – Electric Coin (T30 Models Only) ..........106 42. Unit Will Not Heat – Electric OPL (T30 Models Only) ..........110 43. Error Codes ...............................................................................114 Section 8 – Quantum Control Troubleshooting................................115 Models with LC, LX, LY, WC, WX and WY Control Suffixes 44. No Infrared Communication .....................................................116 45. Coins Ignored When Entered....................................................117 46. No Display ................................................................................118 47. “Door Open” Indicator..............................................................120 48. No Start/Run .............................................................................122 49. Unit Will Not Heat – Gas..........................................................124 50. Unit Will Not Heat – Steam......................................................127 51. Unit Will Not Heat – Electric ...................................................129 52. CE Models No Display .............................................................132 53. CE Models “Door Open” Indicator...........................................134 54. CE Models No Start/Run ..........................................................136 55. CE Models Will Not Heat – Gas/Steam....................................138 56. CE Models Will Not Heat – Electric ........................................141 2 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Section 1 Safety Information Throughout this manual and on machine decals, you will find precautionary statements (“CAUTION”, “WARNING”, and “DANGER”) followed by specific instructions. These precautions are intended for the personal safety of the operator, user, servicer, and those maintaining the machine. DANGER Danger indicates an imminently hazardous situation that, if not avoided, will cause severe personal injury or death. WARNING Warning indicates a hazardous situation that, if not avoided, could cause severe personal injury or death. In the interest of safety, some general precautions relating to the operation of this machine follow. WARNING • Failure to install, maintain, and/or operate this product according to the manufacturer’s instructions may result in conditions which can produce serious injury, death and/or property damage. • Do not repair or replace any part of the product or attempt any servicing unless specifically recommended or published in this Service Manual and that you understand and have the skills to carry out. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the product is properly grounded and to reduce the risk of fire, electric shock, serious injury, or death. CAUTION W006R1 Caution indicates a hazardous situation that, if not avoided, may cause minor or moderate personal injury or property damage. Additional precautionary statements (“IMPORTANT” and “NOTE”) are followed by specific instructions. IMPORTANT: The word “IMPORTANT” is used to inform the reader of specific procedures where minor machine damage will occur if the procedure is not followed. NOTE: The word “NOTE” is used to communicate installation, operation, maintenance or servicing information that is important but not hazard related. 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 3 Safety Information IMPORTANT INFORMATION: During the lifetime of a tumbler, it may require service. The information contained in this manual was written and is intended for use by qualified service technicians who are familiar with the safety procedures required in the repair of a tumbler, and who are equipped with the proper tools and testing equipment. NOTE: The WARNING and IMPORTANT instructions appearing in this manual are not meant to cover all possible conditions and situations that may occur. It must be understood that common sense, caution and carefulness are factors which CANNOT be built into this tumbler. These factors MUST BE supplied by the person(s) installing, maintaining or operating the tumbler. Always contact your dealer, distributor, service agent or the manufacturer on any problems or conditions you do not understand. WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Never start the tumbler with any guards/ panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W240 WARNING Repairs that are made to your products by unqualified persons can result in hazards due to improper assembly or adjustments subjecting you, or the inexperienced person making such repairs, to the risk of serious injury, electrical shock, or death. W007 CAUTION If you or an unqualified person perform service on your product, you must assume the responsibility for any personal injury or property damage which may result. The manufacturer will not be responsible for any injury or property damage arising from improper service and/or service procedures. W008 4 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Safety Information Locating an Authorized Service Person Alliance Laundry Systems is not responsible for personal injury or property damage resulting from improper service. Review all service information before beginning repairs. Warranty service must be performed by an authorized technician, using authorized factory parts. If service is required after the warranty expires, Alliance Laundry Systems also recommends contacting an authorized technician and using authorized factory parts. Safety Warnings and Decals SAFETY WARNINGS and decals have been provided in key locations to remind you of important precautions for the safe operation and maintenance of your tumbler. Please take the time to review these warnings before proceeding with service work. All decals have been designed and applied to withstand washing and cleaning. Decals should be checked periodically to be sure they have not been damaged, removed, or painted. 70304901 Safety Precautions for Servicing Tumblers Prior to servicing tumbler: • Disconnect electrical service and “lockout” to prevent unintentional connection. • Shut off supply gas valve. • Allow machine to cool prior to servicing. After servicing tumbler: • Control/access panels must be reinstalled. • Motor/drive/belt guards must be reinstalled. • Contactor/junction/accessory box covers must be reinstalled. • Use a non-corrosive leak detection solution to check all pipe connections for gas leaks. DO NOT USE AN OPEN FLAME TO CHECK FOR GAS LEAKS! • The loading door switch, lint door switch and airflow switch must be operating properly. © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 5 Section 2 Introduction Model Identification Information in this manual is applicable to these models. Gas Steam T30 CHD30STG2-CAT30L CHD30STG2-CAT30N CHD30STG2-CTT30L CHD30STG2-CTT30N CHD30STG2-CUT30L CHD30STG2-CUT30N DRST30G2-BAT30L DRST30G2-BAT30N DRST30G2-BTT30D DRST30G2-BTT30L DRST30G2-BTT30N DRST30G2-BUT30L DRST30G2-BUT30N GAT30L GAT30N GTT30L GTT30N GUT30L GUT30N HAT30L HAT30N HTT30D HTT30L HTT30N HUT30L HUT30N IPD30STG2-ITT30L IPD30STG2-ITT30N KAT30L KAT30N KTT30L KTT30N KUT30L KUT30N LAT30L LAT30N LTT30L LTT30N LUT30L LUT30N MTT30N NTT30N PAT30L PAT30N PTT30L PTT30N PUT30L PUT30N SAT30L SAT30N STT30D STT30L STT30N SUT30L SUT30N UAT30L UAT30N UTT30L UTT30N UUT30L UUT30N T45 CTT45L CTT45N DRST45G2-BAT45L DRST45G2-BAT45N DRST45G2-BTT45D DRST45G2-BTT45L DRST45G2-BTT45N GTT45L GTT45N HAT45L HAT45N HTT45D HTT45L HTT45N HUT45L HUT45N IPD45STG2-ITT45L IPD45STG2-ITT45N KTT45L KTT45N MTT45N NTT45N SAT45L SAT45N STT45D STT45L STT45N SUT45L SUT45N UTT45L UTT45N CHD30STS2-CTT30S CHD30STS2-CUT30S DRST30S2-BTT30S DRST30S2-BUT30S GTT30S GUT30S HTT30S HUT30S IPD30STS2-ITT30S KTT30S KUT30S LTT30S LUT30S PTT30S PUT30S STT30S SUT30S UTT30S UUT30S Not Applicable Electric CHD30STE2-CTT30E CHD30STE2-CUT30E DRST30E2-BTT30E DRST30E2-BUT30E GTT30E GUT30E HTT30E HUT30E IPD30STE2-ITT30E KTT30E KUT30E LTT30E LUT30E PTT30E PUT30E STT30E SUT30E UTT30E UUT30E Not Applicable Includes models with the following control suffixes: 3O – DX4 OPL 3V – DX4 vended 3X – DX4 prep for coin BC – basic electronic, coin BG – basic electronic, OPL mode BL – basic electronic, central pay BX – basic electronic, prep for coin BY – basic electronic, prep for card DO – DMP OPL DV – DMP vended 6 DX – DMP prep for coin LC – network adaptable coin LX – network adaptable, prep for coin LY – network adaptable, prep for card NC – NetMaster coin NJ – micro, prep single card reader NR – NetMaster card NX – NetMaster, prep for coin NY – NetMaster, prep for card QT – dual digital timer SD – single drop SX – single drop, prep for coin WC – network ready coin WX – network ready, prep for coin WY – network ready, prep for card ZC – NetMaster network coin ZR – NetMaster network card ZX – NetMaster network, prep for coin ZY – NetMaster network, prep for card © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Introduction Serial Plate Location When calling or writing for information about your product, be sure to mention model and serial numbers. Model and serial numbers are found on the serial plate on the rear of the machine and inside the upper loading door hinge. 1 TMB1974N 1 Serial Plate Customer Service Wiring Diagram If literature or replacement parts are required, contact the source from which the machine was purchased or contact Alliance Laundry Systems at (920) 748-3950 for the name and address of the nearest authorized parts distributor. The wiring diagram is located inside the contactor or junction box. The wiring diagram part number is located in the lower portion of the electrical data on the serial plate. For technical assistance, call (920) 748-3121. 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 7 Introduction How A Tumbler Works A tumbler uses heated air to dry loads of laundry. 1 When the motor is started, the exhaust fan pulls room temperature air in through the air intake at the rear of the tumbler and over the heat source (burner flame for gas, heating element for electric, and coil for steam). 2 The heated air moves into the cylinder, where it is circulated through the wet load by the tumbling action of the cylinder. 3 The air then passes through the lint filter, exhaust fan, and is vented to the outdoors. 1 2 3 T002CE3A 8 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Section 3 Troubleshooting WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002 IMPORTANT: Refer to wiring diagram for aid in testing tumbler components. 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 9 Troubleshooting 1. Tumbler Does Not Start Tumbler does not start Is motor relay inoperative? Yes Test relay and replace if necessary. Is the PUSH-TO-START button not properly activated (Manual Timer Models)? Yes No Is loading door open? Close loading door completely. Yes No Is drying timer in an off position (Manual Timer Models)? Turn drying timer on. No Is there an incorrect amount of coins inserted into coin drop? Yes Check that proper amount of coins are inserted. Check power supply, or replace fuses. Yes Close and lock lint panel. No Is there a blown fuse on tumbler? Yes Yes No Is the lint panel open? No Is coin drop inoperative? No Is the electrical power off or circuit breaker or fuse blown? Yes Press and hold PUSH-TOSTART button for three seconds. Yes Check fuse (in junction box) and replace if necessary. Test coin drop and replace if inoperative. No TMB1902S 10 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Troubleshooting 2. Motor Does Not Start Motor does not start Is the electrical power off or circuit breaker fuse blown? Is there broken, loose, or incorrect wiring? Yes Refer to wiring diagram. No Yes Check power supply, or replace fuses. Is the fan or fan motor binding? Yes Replace fan or motor assembly. No No Is the loading door switch or lint panel switch not closed or switch inoperative? Yes Close door, panel or test switch and replace if inoperative. Yes Refer to Adjustments Section for door switch adjustment. Is the transformer inoperative? Yes Test and replace if necessary. Yes Test relay and replace if inoperative. No No Is the start circuit not complete? Replace cylinder, bearing, rollers, or motor assembly. Yes No No Is the door switch improperly adjusted? Is the cylinder or cylinder motor binding? Yes Press and hold PUSH-TO-START button for three seconds. Is the motor relay inoperative? No No Is the motor inoperative? Yes Have motor tested and replace if inoperative. Is the airflow switch inoperative? (Only on manual timer and rotary coin drop.) Yes Test switch, replace or adjust as required. No TMB1903S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 11 Troubleshooting 3. Motor Overload Protector Cycles Repeatedly Motor Overload Protector Cycles Repeatedly Yes Is voltage correct? No Is clothes load too large? Yes Refer to Installation Manual for electrical requirements. Remove part of load. No Is clothes cylinder binding? Yes Check cylinder for binding. No Check with local power company to ensure that wiring is adequate. Yes Is wiring adequate? No Yes Is make-up air adequate? Refer to Installation Manual for make-up air requirements. No Is there lint buildup around tumbler or poor maintenance? No Clean lint accumulation on and around the motors. Yes Is there broken, loose or incorrect wiring? Yes Refer to wiring diagram. TMB1904S 12 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Troubleshooting 4. Motor Runs But Cylinder Does Not Turn Motor Runs But Cylinder Does Not Turn Is cylinder belt broken? Yes Replace cylinder belt. Yes Check cylinder for binding. No Is cylinder binding? TMB1905S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 13 Troubleshooting 5. Motor Does Not Stop Motor Does Not Stop Is the door switch or lint drawer switch not working properly? Yes Test switches and replace if inoperative. No Is coin drop not working properly? Yes Test coin drop and replace if inoperative. No Is wiring incorrect? Yes Refer to wiring diagram. No Is electronic control inoperative? Yes Replace electronic control. Yes Test relay and replace if inoperative. No Is motor relay inoperative? TMB1906S 14 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Troubleshooting 6. Burner Does Not Ignite Burner Does Not Ignite Is there an improper or inadequate exhaust system? Is stove limit thermostat 2 inoperative? Yes Refer to Installation Manual for exhaust system requirements. Is there an insufficient gas supply? No Are there blown fuses or Yes tripped circuit breakers in external electric supply line? No Check fuses or circuit breaker. No No Is drying selector in the “Cool Down” portion of cycle? Yes Reset switch on microprocessor. Are the orifices incorrect? No Yes Test thermostat 2 and replace if inoperative. Open partially closed gas shut-off valve, or correct low gas pressure. Check manifold pressure and adjust to Yes pressure specified on serial plate. If pressure cannot be obtained, have your local gas company check main gas pressure. Tumbler is equipped for type of gas specified on serial Yes plate. If orifices are different from that specified on serial plate, obtain and install correct orifices. No Is the cabinet thermostat inoperative? Yes Test thermostat and replace if inoperative. Is there lint buildup? Yes No Clean lint compartment. Check damper for lint accumulation. Check ductwork for lint buildup. No Is stove limit thermostat 1 inoperative? Yes Test thermostat 1 and replace if inoperative. Is there inadequate ductwork and make-up air? Yes Refer to Installation Manual to ensure that ductwork and make-up air openings are sized accurately. No No Continued on next page TMB1907S-a 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 15 Troubleshooting 6. Burner Does Not Ignite (continued) Continued from previous page Is the IEI control inoperative? Is there an improper igniter to burner clearance? Yes Refer to Paragraph 43. Check valve coils and replace if necessary. Yes Are valve coils inoperative? No Is there a blown fuse on tumbler? Check fuse (located in control box) and replace if necessary. Yes No Is Gas shut-off valve in the closed position? Yes Open shutoff valve. Replace IEI control. No Is motor switch inoperative? No Yes Yes Replace motor. No Is there an inoperative microprocessor, accumulator switch (rotary coin drop) or C1 relay (timer models)? Yes Test and replace as needed. No Is wrong transformer configuration harness installed? Yes Check incoming voltage and install correct configuration harness. No No Is the ground wire from Instant Electronic Ignition (IEI) board not connected to ground terminal? Yes Connect ground wire to ground terminal. Is Instant Electronic Ignition (IEI) control in safety lockout? Yes No 16 Reset IEI control by opening and closing loading door. (NonCE models only) Reset IEI by pressing reset button on back of unit. (CE models only) TMB1907S-b © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Troubleshooting 6. Burner Does Not Ignite (continued) Continued from previous page Is there an inoperative microprocessor or hybrid timer? Yes Test and replace as needed. No Is wrong transformer configuration harness installed? Yes Check incoming voltage and install correct configuration harness. No Is Instant Electronic Ignition (IEI) control in safety lockout? Yes Reset IEI control by opening and closing loading door. (NonCE models only) Reset IEI by pressing reset button on back of unit. (CE models only) TMB1907S-c 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 17 Troubleshooting 7. Burner Ignites and Goes Out Repeatedly Burner Ignites and Goes Out Repeatedly Is Yes there excessive igniter to burner clearance? Is there insufficient gas pressure? Yes Check gas supply and pressure. Is the cabinet thermostat inoperative? Yes Test thermostat and replace if inoperative. No Is the exhaust system improper or inadequate? No Does tumbler have improper orifices? No Is there broken, loose or incorrect wiring? No Is there inadequate make-up air? No Yes Refer to Installation Manual for exhaust system requirements. Tumbler is equipped for type of gas specified on serial Yes plate. If orifices are different from that specified on serial plate, obtain and install correct orifices. Yes Refer to wiring diagram. Refer to Paragraph 43. Yes No Is the thermistor inoperative? Yes Replace thermistor. No Is the control heater relay malfunctioning? Yes Replace control. No Are the back draft dampers locked in close position? Yes No 18 Refer to Installation Manual for make-up air requirements. Repair damper to working order. TMB1908S © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Troubleshooting 8. Burner Does Not Shut Off Burner Does Not Shut Off Are there impurities on gas valve seat, preventing valve from closing? Yes Replace gas valve. No Is wiring correct? Yes Refer to wiring diagram. No Is control heater relay malfunctioning? Yes Replace control. TMB1909S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 19 Troubleshooting 9. Clothes Do Not Dry Clothes Do Not Dry Is there enough heating time allocated for the load? No Start cycle again with enough time to dry load. Does the burner ignite and go out repeatedly? Refer to Burner Ignites and Goes Out Repeatedly flowchart. Yes No Yes Is the burner not igniting? No Refer to Burner Does Not Ignite flowchart. Is the drying selector improperly set? Set selector for higher setting. Yes No Yes Is there too much water in articles being dried? Is the voltage incorrect? Yes Remove excess water. No Is the clothes load too large? Yes Remove part of load. Maximum load is 30 pound dry weight (cotton load) for 30 pound Tumbler, etc. No Is the exhaust system improper or inadequate? Yes Refer to Installation Manual for exhaust system equirements. Yes Refer to Installation Manual for electrical requirements. Yes Refer to Installation Manual for make-up air requirements. No Is there inadequate make-up air? No Is the exhaust duct to the outside blocked? Yes Clean duct to remove blockage. No Continued on next page No TMB2188S-a 20 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Troubleshooting 9. Clothes Do Not Dry (continued) Continued from previous page Is the lint screen clogged? Yes Clean lint screen. Yes Adjust damper so it turns freely. No No Is the thermistor inoperative? Is the exhaust damper binding? Yes Replace thermistor. Is the cylinder speed too fast? Yes Check belt is not riding on outer diameter of motor pulley. No No Is airflow switch bracket mounted improperly? Yes Check for proper alignment: make sure locator pins are securely in place and tighten mounting screws. TMB2188S-b 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 21 Troubleshooting 10. Tumbler Overheating Tumbler Overheating Does tumbler have incorrect main burner orifices? Is the thermistor sensor inoperative? Yes Obtain and install correct orifices. No Is the exhaust damper binding? No Is gas Yes pressure too high or low? Adjust gas pressure as specified on serial plate. Yes Refer to Installation Manual for make-up air requirements. No Is there lint buildup? Yes Clean lint compartment. Check damper for lint accumulation. Check ductwork for lint buildup. No Is the exhaust system restricted or inadequate? No Yes Remove obstruction or lint build up from exhaust ductwork. Refer to Installation Manual for exhaust system requirements. Yes Adjust damper so it turns freely. No Is the control heater relay malfunctioning? No Is the make-up air inadequate? Yes Check wiring to ensure thermistor is connected. Replace thermistor if necessary. Remove lint buildup on thermistor. Yes Replace control. No Are the safety covers missing, allowing cool air to enter tumbler? Yes Replace covers. No Is the lint screen clogged with fabric softener? Yes Replace lint screen. No Are there holes in cabinets due to foreign objects? Yes Repair/replace cabinet components. TMB1911S 22 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Troubleshooting 11. Burner Not Burning Properly Burner Not Burning Properly Is there lint/dirt in burner tube? Yes Disassemble burner and blow out lint/dirt. No No Yes No Is the exhaust duct restricted or blocked? Yes Replace airflow switch. No Is the gas Yes pressure too high or low? Does the tumbler have incorrect orifices? Is the airflow switch not functioning properly? Yes Check serial plate on back of tumbler for correct gas pressure. Tumbler is equipped for the type of gas specified on serial plate. If orifices are different from that specified on serial plate, obtain and install correct orifices. Is there inadequate make-up air? Yes Refer to Installation Manual for make-up air requirements. No Is there lint buildup around gas valve spud? Yes Clean off lint. Disassemble and clean exhaust system. No TMB2189S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 23 Troubleshooting 12. Loading Door Opens During Operation Loading Door Opens During Operation Is tumbler improperly leveled? Yes Refer to Installation Manual for leveling leg adjustment. Yes Remove part of load and restart tumbler. No Is clothes load too large? No Is loading door strike adjusted incorrectly? Yes Refer to Adjustments Section for strike adjustment. TMB1913S 24 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Troubleshooting 13. Cylinder Continues to Spin with Door Open Cylinder Continues To Spin With Door Open Is relay inoperative? NOTE: All tumbler panels must be in place and on the machine for proper operation. Yes Replace relay in control box. TMB1914S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 25 Troubleshooting 14. Coin Does Not Fall into Coin Vault or Coin Drop Sensor Does Not Register That Coin Has Been Entered Coin Does Not Fall Into Coin Vault or Coin Drop Sensor Does Not Register That Coin Has Been Entered Is proper electrical power supplied to coin drop? No Yes Is machine level? No Incorrect electrical connection may prevent coins from registering in coin drop. Refer to wiring diagram. Machines that are not level may prevent coins from following through required check stages of drop. Refer to Installation Manual for instructions on leveling machine. Yes Is coin drop clean? No Residue or lint build-up may prevent coins from following through required check stages of drop. Clean coin drop. Yes Is sensor operative? No Replace coin drop sensor. TMB1915S IMPORTANT: Never use oil to correct coin drop problem. Oil residue will prevent coins from rolling properly. IMPORTANT: Do not bend or damage mechanical parts within coin drop. 26 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Section 4 Adjustments WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002 15. Loading Door Switch The door switch should be adjusted so the cylinder stops when door is opened 2 inches (51 mm), plus or minus 1/4 inch (6 mm). The switch is normally open and is closed when the door is closed. If adjustment is needed, proceed as follows: Refer to Figure 1. switch actuator OUTWARD and repeat steps “a” and “b.”. 16. Loading Door Strike a. Close door and start tumbler. Slowly open loading door. Cylinder and heat system should shut off when door is open 2 inches (51 mm), plus or minus 1/4 inch (6 mm). b. Slowly close loading door. When door is 2 inches or less from being fully closed, the switch actuator on the door should contact the switch plunger and depress it enough to close the switch with an audible “click”. c. If switch actuator does not depress the switch plunger enough to operate the switch, bend Refer to Figure 1. The door strike must be adjusted so that sufficient tension holds loading door closed against the force of a load tumbling against it. The door is properly adjusted when 8-15 lbs. (3.60-6.75 kg) of pull is required to open door. If adjustment is needed, follow these steps: a. b. c. d. Open loading door. Loosen jamnut. Turn door strike screw in or out as required. Retighten jamnut. Loading Door Switch Actuator Jamnut Door Strike Screw T280SE3C Figure 1 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 27 Section 5 Micro Display Control (MDC) Troubleshooting Models with BC, BG, BL, BX and BY Control Suffixes WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002 17. Coins Ignored When Entered Gas and electric heat. Single and three phase power supply. Start coin drop diagnostic tests. Does the display on the electronic control increment properly? YES Exit diagnostic testing and reset control. (Prompting for vend price) NO Reconnect and run diagnostic test again. NO Reconnect and run diagnostic test again. NO Is connector H2 on the control firmly seated in its receptacle? YES Is the 3 pin connector between coin drop and control connected correctly? YES Are wires exiting coin drop optical sensor cracked or broken? YES Replace coin drop or optic switch. NO Replace coin drop. If problem still exists then replace the electronic control. 28 TMB1978S TMB1978S © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Micro Display Control (MDC) Troubleshooting 18. Control Has No Display Control has no display (1) Is there voltage across H1-1 & H1-3 on the control? Gas, steam and electric heat. Single and three phase power supply. (6) YES Replace electronic control. NO Is there voltage at the input of the secondary fuse? NO Correct wiring between secondary fuse and transformer. YES (7) Is there power supplied to the unit? NO Plug unit in and run it. YES Is there voltage at output side of secondary fuse? NO Replace secondary fuse. YES (2) Is there voltage at input of primary fuses? NO Correct wiring between primary fuse and power supply. Correct wiring between control and secondary fuse. YES (3) Is there voltage at output side of the primary fuses? NO Replace primary fuse(s). YES (4) Is there voltage across terminals 1 & 2 of transformer primary? NO Correct wiring between primary fuse and transformer. YES (5) Is there voltage across terminals 1 & 4 of transformer secondary? NO Replace transformer. YES TMB1979S TMB1979S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 29 L2 4 7 SECONDARY FUSE MDL-3.5A 250V 6 2 BLK BLK RED RED RED/WHT 120V 1 N.O. COM LT. BLU 4 2 3 RED/WHT RED/BLU 5 N.O. COM LINT DRAWER SWITCH SECONDARY FUSE 1.25 T 250V WHT 24V 1.5A DOOR SWITCH 3 24V 3.5A 1 250V AGC-2A FUSE PRIMARY 2 RED RED N RED/BLK RED/BLK RED/BLK FS-2 H2-1 H2-2 H2-5 3 2 1 5 H5 6 8 7 9 10 11 12 HEAT RELAY MOTOR RELAY COIN DROPS 4 RED WHT/BLU DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt MDC CONTROL 24Vac H1-2 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 2 H6 3 4 5 6 SEE VEND APPLICATION DETAIL 1 24VAC H4 10 9 7 6 H3 5 4 7 6 WHT 5 4 3 3 2 2 100 OHM 1/4 watt 1 Door Sense Ret TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY 8 START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN. AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma CONTROL POWER SUPPLY 1 H1-1 CONNECTION 24Vac Ret H1-4 H1-3 24Vac Ret L1 4N25 SERVICE FS-1 H2-4 H2-3 H2-6 1 H4 10 9 COM AIR FLOW SWITCH ORG/BRN WHT 8 TMB1977S TMB1977S CABINET LIMIT THERMOSTAT N.O. N.C. BRN/RED CHASSIS GROUND GRN/YEL BLK THERMISTOR WHT H11L1 30 WHT/VLT TB1 Micro Display Control (MDC) Troubleshooting Control Has No Display 70304901 Micro Display Control (MDC) Troubleshooting 19. Door Open Indicator (1) Gas, steam and electric heat. Single and three phase power supply. Is there voltage at H2-1 on the Electronic control? Reference voltage checks to transformer neutral. YES Replace control. NO (6) Is there voltage at the input of the secondary fuse? NO Correct wiring between secondary fuse and transformer. YES (7) Is there power supplied to the unit? NO Plug unit in and run it. YES NO Correct wiring between primary fuses and power supply. NO Replace primary fuse(s). Correct wiring between N.O. and output of secondary fuse. With door closed is there voltage to COM of door switch? NO Check for proper function of door switch replace if necessary. NO Correct wiring between N.O. on lint drawer and COM on door switch. NO Check for proper operation replace if necessary. YES (4) (10) NO Correct wiring between primary fuses and transformer. YES Is there voltage at N.O. of lint drawer switch? YES (5) YES NO (9) YES Is there voltage across terminals 2 & 3 of transformer secondary? Is there voltage at N.O. of door switch? YES (3) Is there voltage across terminals 1 & 2 of transformer primary? Replace secondary fuse. (8) YES Is there voltage at output side of the primary fuses? NO YES (2) Is there voltage at input of primary fuses? Is there voltage at output side of secondary fuse? (11) NO Replace transformer. Is there voltage at COM of lint drawer switch with lint drawer closed? YES Correct wiring between H2-1 of electronic control and COM of lint drawer switch. TMB1980S TMB1980S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 31 7 L2 SECONDARY FUSE MDL-3.5A 250V 6 2 BLK BLK RED RED RED/WHT FUSE 9 1 N.O. COM LT. BLU 4 2 4 RED/WHT N.O. COM LINT DRAWER SWITCH 11 RED/BLU 10 SECONDARY FUSE 1.25 T 250V WHT 24V 1.5A DOOR SWITCH 8 3 120V 250V AGC-2A 24V 3.5A 1 3 PRIMARY 2 RED RED N RED/BLK RED/BLK RED/BLK 5 FS-2 H2-1 H2-2 H2-5 3 2 1 5 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT H5 6 8 7 9 10 11 12 HEAT RELAY MOTOR RELAY COIN DROPS 4 RED WHT/BLU DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt MDC CONTROL 24Vac H1-2 2 H6 3 4 5 6 SEE VEND APPLICATION DETAIL 1 24VAC H4 10 9 7 6 H3 5 4 7 6 WHT 5 4 3 3 2 2 100 OHM 1/4 watt 1 Door Sense Ret TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY 8 START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN. AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma CONTROL POWER SUPPLY 1 H1-1 CONNECTION 24Vac Ret H1-4 H1-3 24Vac Ret L1 4N25 SERVICE FS-1 H2-4 H2-3 H2-6 1 H4 10 9 COM AIR FLOW SWITCH ORG/BRN WHT 8 TMB1981S TMB1981S CABINET LIMIT THERMOSTAT N.O. N.C. BRN/RED CHASSIS GROUND GRN/YEL BLK THERMISTOR WHT H11L1 32 WHT/VLT TB1 Micro Display Control (MDC) Troubleshooting Door Open Indicator 70304901 Micro Display Control (MDC) Troubleshooting 20. Motor Will Not Start/Run Note: test conducted with vend (1) price satisfied and start button pressed. Is there voltage across H2-1 and H2-6 on the electronic control ? NO Gas, electric and steam heat. Single and three phase power supply. Refer to Door Open Indicator flowchart. (2) NO Replace control. Does the fan motor run? NO Correct wiring to coil of motor relay . 3 phase. Also see Note on next page NO Replace fan motor. Single phase Three phase. Also see Note on next page. (12) Is the unit equipped with single phase or three phase power? Is there supply voltage between L2 & L3 of motor control relay? Single phase (4) NO Correct wiring between terminal 5 and power supply. NO Replace motor control relay. NO Correct wiring between L2, L3 and supply. YES (13) Is there voltage across terminals L2 & T2 and L3 & T3? YES (5) Is there voltage at terminal 8 of motor control relay? Correct wiring between fan motor and motor control relay. YES Is unit equipped with single phase or three phase power supply? YES Is there voltage at terminal 5 of the motor control relay? NO YES YES (3) Is there voltage across the coil of the motor control relay? (6) Is there voltage across terminals 1 & 4 of the fan motor? YES Is there voltage across H2-4 and H2-6 on the electronic control? Replace MDC control. YES Replace motor control relay. NO (7) YES Is there voltage at terminal 6 of motor control relay? (10) Is there supply voltage to L1 and L2 of the motor control relay? NO Correct wiring between L1, L2 and power supply. YES (11) Is there votlage across L1 & T1 and L2 & T2? Replace motor control relay. Correct wiring between terminal 6 of motor control relay and supply. YES (8) Is there voltage at terminal 9 of motor control relay? YES NO NO Replace motor control relay. YES NO 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 33 Micro Display Control (MDC) Troubleshooting 20. Motor Will Not Start/Run (continued) (9) Is there voltage across terminals 1 & 4 of cylinder motor? NO Correct wiring between fan motor and motor control relay. NO Correct wiring between cylinder motor and motor control relay. YES Does the cylinder motor run? NO Replace cylinder motor. NO Replace fan motor. YES Motors are operational. Single phase Note: For high voltage three phase supply (380 volts or higher), the cylinder and fan motors are supplied by L1, L2, L3 through the motor relay terminals T1, T2, T3. Make the appropriate adjustments when doing voltage checks. Also n next NO YES NO NO Correct wiring between L2, L3 and supply. Replace motor control relay. Correct wiring between terminal 6 of motor control relay and supply. Replace motor control relay. TMB1982S TMB1982S Please see following 2 pages for wiring diagram information. 34 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 RED/BLK RED/BLK RED/BLK FS-2 3 H2-1 H2-2 2 1 5 4 H5 6 8 7 COIN DROPS 9 10 11 12 HEAT RELAY MOTOR RELAY DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt 24Vac H1-2 H2-5 MDC CONTROL RED 24Vac Ret © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 1 2 24VAC H6 3 4 5 6 H4 10 9 7 6 H3 5 4 7 6 5 4 3 3 2 1 2 100 OHM 1/4 watt 1 FS-1 H2-4 H2-3 H4 10 9 COM AIR FLOW SWITCH ORG/BRN WHT 8 7 CABINET LIMIT THERMOSTAT N.O. M 3 4 BRN 5 A 3 7 2 M 1 4 VLT ORG/ WHT WHT WHT BLK WHT/ BRN 3 GRN/YEL STOVE LIMIT THERMOSTAT 2 VLT/WHT FAN MOTOR CENTRIFUGAL SWITCH THERMISTOR WHT STOVE LIMIT THERMOSTAT 1 BRN/WHT B 6 WHT VLT WHT N.C. ORG BRN/RED 2 CHASSIS GROUND GRN/YEL BLK THERMISTOR WHT H2-6 Door Sense Ret TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY 8 START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN. AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma CONTROL POWER SUPPLY H1-1 SEE VEND APPLICATION DETAIL H1-4 H1-3 24Vac Ret WHT 4N25 WHT/BLU H11L1 1 WHT/VLT 5 4 GND 2 TH IGN BLK GRY/BLK 1 ICM 8 5 3 RUN 1 VALV GND 3 MAIN 1 THERM PROT. 5 WHT BLK WHT/ 6 MAIN 2 AUX FAN MOTOR GND 3 M 5 WHT 70304901 4 1 7 LT. BLU FIRST COIL SECOND COIL RUN MAIN 1 THERM PROT. 8 TB1-L1 9 4 TB1-N TMB1983S MAIN 2 AUX CYLINDER MOTOR M BLK/RED 208-240V SERVICE TB1-L2 120V SERVICE GAS VALVE 9 6 BLK/RED BLU/BLK 4 Micro Display Control (MDC) Troubleshooting Motor Will Not Start/Run (Sheet 1 of 2) 35 T3 T2 H5 H3 2 SECONDARY FUSE MDL-3.5A 250V HC1 BLK 1 250V AGC-2A FUSES PRIMARY BLK/ WHT 2 BLK/ WHT 1 3 3 4 1 N.O. COM 6 4 RED/WHT RED/BLU N.O. COM LINT DRAWER SWITCH SECONDARY FUSE 1.25 T 250V WHT 24V 1.5A 5 DOOR SWITCH 24V 4.0A 2 SEE TRANSFORMER CONFIGURATION JUMPER BLK RED RED RED/WHT RED RED HC2 RED/BLK RED/BLK RED/BLK FS-2 H2-1 H2-2 H2-5 3 MDC CONTROL 2 1 5 H5 6 8 7 9 10 11 12 HEAT RELAY MOTOR RELAY COIN DROPS 4 RED WHT/BLU 1 DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt 24Vac H1-2 L3 24Vac Ret 1 2 24VAC H6 3 4 5 6 H4 8 7 6 H3 5 4 7 6 WHT 5 4 3 3 2 2 100 OHM 1/4 watt 1 Door Sense Ret TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY 10 9 START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN. AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma CONTROL POWER SUPPLY H1-1 SEE VEND APPLICATION DETAIL H1-4 H1-3 24Vac Ret L2 4N25 TB1-L3 FS-1 H2-4 H2-3 H2-6 1 WHT H4 10 9 COM AIR FLOW SWITCH ORG/BRN WHT 8 7 CABINET LIMIT THERMOSTAT N.O. VLT 6 M 4 3 14 2 M 3 1 13 WHT ORG/ WHT WHT WHT BLK WHT/ BRN 3 11 10 HC2 HC1 FAN MOTOR CENTRIFUGAL SWITCH THERMISTOR VLT/WHT STOVE LIMIT THERMOSTAT BRN/WHT BRN 5 WHT 2 WHT N.C. ORG BRN/RED CHASSIS GROUND GRN/YEL BLK THERMISTOR H11L1 TB1-L2 WHT/VLT 5 T1 L1 BLK GRY/BLK 36 1 M 3 BLK/WHT 4 1 13 RUN MAIN 1 THERM PROT. AUX MAIN 2 4 LT. BLU TMB1984S 9 MAIN 2 AUX 5 M 12 6 T3 BLK/RED CYLINDER MOTOR MAIN 1 THERM PROT. M L3 LT. BLU FAN MOTOR RUN T2 L2 TB1-L3 TB1-L2 TB1-L1 BLU/BLK TB1-L1 Micro Display Control (MDC) Troubleshooting Motor Will Not Start/Run (Sheet 2 of 2) © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 WHT Micro Display Control (MDC) Troubleshooting 21. Unit Will Not Heat – Gas Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (1) (7) NO Is there voltage at FS-2 of MDC control? Correct wiring between FS-2 and COM of lint drawer. YES Is there voltage at terminal 3 of fan motor centrifugal switch? NO Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay. YES Replace MDC control. Replace thermistor. (2) (8) NO Is there voltage at FS-1 of MDC control? NO Is the thermistor operational? YES Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? NO (9) NO Correct wiring between COM of airflow switch and FS-1 of MDC control. Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. YES YES (10) (4) Is there voltage across COM & N.C. terminal of airflow switch? Replace fan motor. YES (3) Is there voltage at COM of airflow switch? YES YES Check for proper function of airflow switch and replace if necessary. NO YES Is there voltage across cabinet limit? Replace cabinet limit. NO (5) Is there voltage at terminal 7 of motor control relay? (11) NO Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch. YES Is there voltage to the input side of the stove limit? NO Correct wiring between stove limit 1 and cabinet limit. YES (6) Is there voltage across terminals 7 & 4 of motor control relay? YES Replace motor control relay. NO TMB1985S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 37 Micro Display Control (MDC) Troubleshooting 21. Unit Will Not Heat – Gas (continued) (12) Is there voltage across the stove limit 1? YES YES Replace the stove limit. NO Is there gas flow through the gas valve? NO Replace gas valve coils or complete gas valve. NO Replace high voltage ignition cable or igniter. YES (13) NO Is there voltage to input side of stove limit 2? Correct wiring between stove limit 1 and stove limit 2. YES Does the igniter spark? YES (14) Is there voltage across stove limit 2? YES YES Replace stove limit 2. Is there a flame? Unit operational. NO NO (15) Is there voltage to terminal 2 of the Ignition Control Module (ICM)? NO Correct wiring between terminal 2 of ICM and stove limit 2. YES Note: Make sure unit is not in a lock out condition. (16) NO Is there voltage at terminal 1 of ICM board? Replace ICM board. YES (17) Is there voltage across the coils of the gas valve? NO Correct wiring between gas valve and ICM board. YES TMB1985S TMB1985S Please see following page for wiring diagram information. 38 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 RED/BLK RED/BLK RED/BLK FS-2 H2-1 H2-2 3 2 1 5 4 H5 6 8 7 COIN DROPS 9 10 11 12 HEAT RELAY MOTOR RELAY DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED 24Vac H1-2 H2-5 MDC CONTROL VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt RED 24Vac Ret © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 1 2 24VAC H6 3 4 5 6 H4 10 9 8 7 6 H3 5 4 7 6 5 4 3 3 2 2 2 100 OHM 1/4 watt 1 Door Sense Ret TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN. AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma CONTROL POWER SUPPLY H1-1 SEE VEND APPLICATION DETAIL H1-4 H1-3 24Vac Ret WHT 4N25 WHT/BLU FS-1 H2-4 H2-3 H2-6 1 H4 10 9 COM AIR FLOW SWITCH ORG/BRN 3 WHT 8 N.O. CABINET LIMIT THERMOSTAT 10 7 WHT N.C. ORG BRN/RED 4 CHASSIS GROUND GRN/YEL BLK THERMISTOR WHT H11L1 1 WHT/VLT M 5 4 12 7 2 M 6 1 9 STOVE LIMIT THERMOSTAT 1 VLT A 3 11 BRN 5 BRN/WHT B 6 WHT 4 VLT 7 3 14 VLT/WHT GRN/YEL 5 4 GND 2 TH IGN 8 FAN MOTOR CENTRIFUGAL SWITCH WHT/ BRN STOVE LIMIT THERMOSTAT 2 13 ORG/ WHT WHT WHT BLK THERMISTOR WHT ICM 8 BLK 3 3 GND 3 GND 15 1 M 1 VALV GRY/BLK 70304901 RUN BLK AUX 5 16 MAIN 2 WHT WHT/ MAIN 1 THERM PROT. FAN MOTOR WHT 5 LT. BLU 17 TMB1986S SECOND COIL FIRST COIL GAS VALVE 4 Micro Display Control (MDC) Troubleshooting Unit Will Not Heat – Gas 39 Micro Display Control (MDC) Troubleshooting 22. Unit Will Not Heat – Steam (T30 Models Only) Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (1) Is there voltage on FS-2 of MDC control? (7) NO Correct wiring between FS-2 and COM of lint drawer. YES Replace MDC control. Replace thermistor. (2) (9) NO Correct wiring between COM of airflow switch and FS-1 of MDC control. Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. YES (10) (4) YES Check for proper function of airflow switch and replace if necessary. NO Is there voltage across cabinet limit? YES Replace cabinet limit. NO (5) Is there voltage on terminal 7 of motor control relay? Replace fan motor. NO YES Is there voltage across COM & N.C. terminal of airflow switch? YES YES (3) Is there voltage on COM of airflow switch? Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay. YES Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? NO Is the thermistor operational? YES NO (8) NO Is there voltage on FS-1 of MDC control? Is there voltage on terminal 3 of fan motor centrifugal switch? (11) NO Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch. YES Is there voltage to the input side of the stove limit? NO Correct wiring between stove limit and cabinet limit. YES (6) Is there voltage across terminals 7 & 4 of motor control relay? YES Replace motor control relay. TMB1987S NO 40 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Micro Display Control (MDC) Troubleshooting 22. Unit Will Not Heat – Steam (T30 Models Only) (continued) (12) NO Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay. Is there voltage across the stove limit? YES Replace the stove limit. NO (13) YES Is there voltage across the coil of the steam valve? Correct wiring between steam valve and stove limit. NO Replace fan motor. YES NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. Does the steam valve open allowing steam to flow? No Replace or rebuild steam valve. Unit operational. YES NO Replace cabinet limit. Correct wiring between stove limit and cabinet limit. TMB1987S Please see following page for wiring diagram information. 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 41 Micro Display Control (MDC) Troubleshooting TMB1988S 1 2 3 9 4 10 5 12 11 6 7 13 8 Unit Will Not Heat – Steam (T30 Models Only) 42 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Micro Display Control (MDC) Troubleshooting 23. Unit Will Not Heat – Electric (T30 Models Only) Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (1) Is there voltage at FS-2 of MDC control? (7) NO Correct wiring between FS-2 and COM of lint drawer switch. YES Is there voltage at terminal 3 of fan motor centrifugal switch? NO Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 13 of motor control relay. YES Replace MDC control. Replace thermistor. (2) (8) NO Is there voltage on FS-1 of MDC control? Is the thermistor operational? YES Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? NO NO (9) NO Correct wiring between COM of airflow switch and FS-1 of MDC control. YES Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. YES (10) (4) Is there voltage across COM & N.C. terminal of airflow switch? Replace fan motor. YES (3) Is there voltage at COM of airflow switch? YES YES Check for proper function of airflow switch and replace if necessary. NO Is there voltage across cabinet limit? YES Replace cabinet limit. NO (5) Is there voltage at terminal 14 of motor control relay? (11) NO Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch. YES Is there voltage to the input side of the stove limit? NO Correct wiring between stove limit and cabinet limit. YES (6) Is there voltage across terminals 13 & 14 of motor control relay? YES Replace motor control relay. NO TMB1989S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 43 Micro Display Control (MDC) Troubleshooting 23. Unit Will Not Heat – Electric (T30 Models Only) (continued) Note: Please make the oppropriate adjustments if your unit is single phase. (12) Is there voltage across the stove limit? YES Replace the stove limit. NO (13) Is there voltage across the coil(s) of the heater contactor(s)? NO Correct wiring between heater contactor and stove limit. NO Correct wiring between HC1 and Line voltage. NO Correct wiring between HC2 and Line voltage. NO Check for proper operation of contactors, replace them if necessary. YES (14) Is there voltage to the L1, L2 and L3 terminals of HC1? YES (15) Is there voltage to the L1, L2 and L3 terminals of HC2? YES (16)(17)(18) Is there voltage across T1 & T2, T2 & T3 and T3 & T1? Unit is operational YES Do all elements produce heat? NO Check elements for shorts or opens. Check wires between contactors and elements. YES TMB1989S TMB1989S Please see following page for wiring diagram information. 44 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 16 L3 CONNECTION H6 H1 T1 HC2 L1 T2 HC1 L2 H4 H2 T2 HC2 L2 17 15 18 HEATING ELEMENTS T1 T3 L1 HC1 HC2 L3 H5 H3 2 SECONDARY FUSE MDL-3.5A 250V T3 HC1 L3 TB1-L3 TB1-L2 250V 2 1 3 3 4 1 N.O. COM 6 4 RED/WHT RED/BLU N.O. COM LINT DRAWER SWITCH SECONDARY FUSE 1.25 T 250V WHT 24V 1.5A 5 DOOR SWITCH 24V 4.0A 2 SEE TRANSFORMER CONFIGURATION JUMPER 1 AGC-2A FUSES PRIMARY BLK/ WHT BLK/ WHT L2 BLK BLK RED RED RED/WHT RED RED SERVICE RED/BLK RED/BLK RED/BLK FS-2 H2-1 H2-2 H2-5 3 2 1 5 H5 6 8 7 9 10 11 12 HEAT RELAY MOTOR RELAY COIN DROPS 4 RED WHT/BLU 1 DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt MDC CONTROL 24Vac H1-2 TB1-L1 24Vac Ret © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 1 2 24VAC H6 3 4 5 6 H4 8 7 6 H3 5 4 7 6 WHT 5 4 3 2 3 2 2 100 OHM 1/4 watt 1 Door Sense Ret TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY 10 9 START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN. AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma CONTROL POWER SUPPLY H1-1 SEE VEND APPLICATION DETAIL H1-4 H1-3 24Vac Ret L1 4N25 14 FS-1 H2-4 H2-3 H2-6 1 H4 10 9 COM 8 N.O. 9 CABINET LIMIT THERMOSTAT 10 7 VLT 4 BRN M 5 5 12 BRN/WHT 6 WHT 3 14 2 11 M 6 1 13 7 ORG/ WHT WHT WHT BLK WHT/ BRN 3 8 5 TMB1990S HC2 HC1 13 FAN MOTOR CENTRIFUGAL SWITCH THERMISTOR WHT VLT/WHT STOVE LIMIT THERMOSTAT WHT N.C. ORG BRN/RED 4 AIR FLOW SWITCH ORG/BRN 3 WHT CHASSIS GROUND GRN/YEL BLK THERMISTOR WHT H11L1 70304901 WHT/VLT TB3 Micro Display Control (MDC) Troubleshooting Unit Will Not Heat – Electric (T30 Models Only) 45 WHT Micro Display Control (MDC) Troubleshooting WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002 24. Error Codes OP - Indicates physical “open” in the thermistor circuit. Possible causes are: 1) thermistor, 2) wiring between control and thermistor, 3) control. SH - Indicates a “short” in the thermistor circuit. Possible causes are: 1) shorted thermistor, 2) a short in the wiring between control and thermistor, 3) control. Display EC:19 - Indicates no card reader communication. The control and the reader cannot communicate. Check reader, control and harness. NOTE: For all other card reader errors, consult the card reader manual provided by the manufacturer. Definition Corrective Action OP Indicates an open circuit in the thermistor. • Check thermistor. Replace if inoperative. • Check wiring between control and thermistor. Refer to wiring diagram for proper wiring. • Check control. Replace if inoperative. SH Indicates a short circuit in the thermistor. • Check thermistor. Replace if inoperative. • Check wiring between control and thermistor. Refer to wiring diagram for proper wiring. • Check control. Replace if inoperative. Indicates no communication between control and card reader. • Check card reader. Replace if inoperative. • Check wire harness connecting card reader and control. Replace if inoperative. • Check control. Replace if inoperative. EC:19 *Card Reader models only 46 Card Reader Machines: (In addition to the above errors) © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 TMB2010S Micro Display Control (MDC) Troubleshooting Gas and Steam Models Control Circuit Schematic 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 47 TMB2011S Micro Display Control (MDC) Troubleshooting Gas and Steam Models Control Circuit Connection Diagram 48 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 TMB2012S Micro Display Control (MDC) Troubleshooting Gas and Steam Models Control Box Schematic 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 49 TMB2013S Micro Display Control (MDC) Troubleshooting Gas and Steam Models Control Box Connection Diagram 50 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 TMB2014S Micro Display Control (MDC) Troubleshooting Electric Models Control Circuit Schematic 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 51 TMB2015S Micro Display Control (MDC) Troubleshooting Electric Models Control Circuit Connection Diagram 52 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 TMB2016S Micro Display Control (MDC) Troubleshooting Electric Models Contactor Box Schematic 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 53 TMB2017S Micro Display Control (MDC) Troubleshooting Electric Models Contactor Box Connection Diagram 54 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Section 6 NetMaster Troubleshooting Models with NC, NJ, NR, NX, NY, ZC, ZR, ZX and ZY Control Suffixes WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002 25. No Infra-red (IR) Communication Gas and electric heat. Single and three phase power supply. Attempt to communicate with the electronic control from the handheld communication device Check the following: NO Is there a response of any kind from the electronic control? Aim handheld communication device closer and try again. YES Does the control respond? YES NO - low battery in handheld communication device. - low battery in the Symbol SPT 1800 infra-red box. - poor connection between IR cup and Micro-Wand. - poor connection between IR box and Symbol SPT 1800. - is the IR window covered or blurred on the control. NO -C- Does the electronic control display E:OF or -C-? Communication sequence checks out. Replace the electronic control. "E:OF" Check the following: - IR communication disabled by manual programming. - Is the IR window on the control covered or blocked. - if needed, change control board. TMB1991S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 55 NetMaster Troubleshooting 26. Coins Ignored When Entered Gas and electric heat. Single and three phase power supply. Start coin drop diagnostic tests. Does the display on the electronic control increment properly? YES Exit diagnostic testing and reset control. (Prompting for vend price) NO Reconnect and run diagnostic test again. NO Reconnect and run diagnostic test again. NO Is connector H5 on the control firmly seated in its receptacle? YES Is the 3 pin connector between coin drop and control connected correctly? YES Are wires exiting coin drop optical sensor cracked or broken? YES Replace coin drop or optic switch. NO Replace coin drop. If problem still exists then replace the electronic control. 56 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT TMB1992S 70304901 NetMaster Troubleshooting 27. Control Has No Display Gas, steam and electric heat. Single and three phase power supply. (1) Is there voltage across H1-1 & H1-3 on the control? YES Replace electronic control. NO (6) Is there voltage at the input of the secondary fuse? NO Correct wiring between secondary fuse and transformer. YES (7) Is there power supplied to the unit? NO Plug unit in and run it. YES Is there voltage at output side of secondary fuse? NO Replace secondary fuse. YES (2) Is there voltage at input of primary fuses? NO Correct wiring between primary fuse and power supply. Correct wiring between control and secondary fuse. YES (3) Is there voltage at output side of the primary fuses? NO Replace primary fuse(s). YES (4) Is there voltage across terminals 1 & 2 of transformer primary? NO Correct wiring between primary fuse and transformer. YES (5) Is there voltage across terminals 1 & 4 of transformer secondary? NO Replace transformer. YES TMB1993S Please see following 2 pages for wiring diagram information. 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 57 NetMaster Troubleshooting Control Has No Display (Sheet 1 of 2) 2 3 5 1 4 6 7 58 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 NetMaster Troubleshooting Control Has No Display (Sheet 2 of 2) TMB2236S TMB2236S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 59 NetMaster Troubleshooting 28. Door Open Indicator (1) Gas, steam and electric heat. Single and three phase power supply. Is there voltage at H2-1 on the electronic control? Reference voltage checks to transformer neutral. YES Replace control. NO (6) Is there voltage at the input of the secondary fuse? NO Correct wiring between secondary fuse and transformer. YES (7) Is there power supplied to the unit? NO Plug unit in and run it. Is there voltage at output side of secondary fuse? NO Replace secondary fuse. YES YES (8) (2) Is there voltage at input of primary fuses? NO Correct wiring between primary fuses and power supply. Is there voltage at N.O. of door switch? NO Correct wiring between N.O. and output of secondary fuse. NO Check for proper function of door switch replace if necessary. NO Correct wiring between N.O. on lint drawer and COM on door switch. NO Check for proper operation replace if necessary. YES YES (9) (3) Is there voltage at output side of the primary fuses? NO Replace primary fuse(s). With door closed is there voltage to COM of door switch? YES YES (10) (4) Is there voltage across terminals 1 & 2 of transformer primary? NO Correct wiring between primary fuses and transformer. Is there voltage at N.O. of lint drawer switch? YES (11) YES (5) Is there voltage across terminals 2 & 3 of transformer secondary? NO Replace transformer. Is there voltage at COM of lint drawer switch with lint drawer closed? YES YES 60 Correct wiring between H2-1 of electronic control and COM of lint drawer switch. © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT TMB1995S 70304901 NetMaster Troubleshooting Please see following 2 pages for wiring diagram information. 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 61 NetMaster Troubleshooting Door Open Indicator (Sheet 1 of 2) 2 3 4 1 5 6 7 8 62 9 10 11 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 NetMaster Troubleshooting Door Open Indicator (Sheet 2 of 2) TMB2237S TMB2237S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 63 NetMaster Troubleshooting 29. Motor Will Not Start/Run Note: test conducted with vend (1) price satisfied and start button pressed. Is there voltage across H2-1 and H2-6 on the electronic control ? NO Gas, electric and steam heat Single and three phase power supply. Refer to Door Open Indicator flowchart. (2) NO Replace control. Does the fan motor run? NO Correct wiring to coil of motor relay . 3 phase. Also see note on next page NO Replace fan motor. Single phase Three phase. Also see note on next page. (12) Is the unit equipped with single phase or three phase power? Is there supply voltage between L2 & L3 of motor control relay? Single phase (4) NO Correct wiring between terminal 5 and power supply. NO Replace motor control relay. NO Correct wiring between L2, L3 and supply. YES (13) Is there voltage across terminals L2 & T2 and L3 & T3? YES (5) Is there voltage at terminal 8 of motor control relay? Correct wiring between fan motor and motor control relay. YES Is unit equipped with single phase or three phase power supply? YES Is there voltage at terminal 5 of the motor control relay? NO YES YES (3) Is there voltage across the coil of the motor control relay? (6) Is there voltage across terminals 1 & 4 of the fan motor? YES Is there voltage across H2-4 and H2-6 on the electronic control? Replace electronic Control. YES Replace motor control relay. NO (7) YES Is there voltage at terminal 6 of motor control relay? (10) Is there supply voltage to L1 and L2 of the motor control relay? NO Correct wiring between L1, L2 and power supply. YES (11) Is there votlage across L1 & T1 and L2 & T2? Replace motor control relay. Correct wiring between terminal 6 of motor control relay and supply. YES (8) Is there voltage at terminal 9 of motor control relay? YES NO NO Replace motor control relay. YES NO Note: tests conducted with vend price satisfied and start button pressed. 64 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 NetMaster Troubleshooting 29. Motor Will Not Start/Run (continued) (9) Is there voltage across terminals 1 & 4 of cylinder motor? NO Correct wiring between cylinder motor and motor control relay. YES Does the cylinder motor run? NO Replace cylinder motor. YES Motors are operational. Note: For high voltage three phase supply (380 volts or higher), the cylinder and fan motors are supplied by L1, L2, L3 through the motor relay terminals T1, T2, T3. Make the appropriate adjustments when doing voltage checks. TMB1997S TMB1997S Please see following 4 pages for wiring diagram information. 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 65 NetMaster Troubleshooting Motor Will Not Start/Run (Sheet 1 of 2) 1 Phase Models 4 5 1 2 3 66 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 NetMaster Troubleshooting Motor Will Not Start/Run (Sheet 2 of 2) 1 Phase Models 7 4 5 8 6 9 TMB2238S TMB2238S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 67 NetMaster Troubleshooting Motor Will Not Start (Sheet 1 of 2) 3 Phase Models 1 68 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 NetMaster Troubleshooting Motor Will Not Start (Sheet 2 of 2) 3 Phase Models 12 10 13 11 2 3 6 9 TMB2239S TMB2239S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 69 NetMaster Troubleshooting 30. Unit Will Not Heat – Gas Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (1) (7) NO Is there voltage at FS-2 of the control? Correct wiring between FS-2 and COM of lint drawer. YES Is there voltage at terminal 3 of fan motor centrifugal switch? NO Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay. YES Replace control. Replace thermistor. (2) (8) NO Is there voltage at FS-1 of control? Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? NO Is the thermistor operational? YES NO (9) Is there voltage at COM of airflow switch? NO Correct wiring between COM of airflow switch and FS-1 of the control. Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. YES YES (10) (4) YES Check for proper function of airflow switch and replace if necessary. NO Is there voltage across cabinet limit? YES Replace cabinet limit. NO (5) Is there voltage at terminal 7 of motor control relay? Replace fan motor. YES (3) Is there voltage across COM & N.O. terminal of airflow switch? YES (11) NO Correct wiring between terminal 7 on motor control relay and N.O. terminal on airflow switch. YES Is there voltage to the input side of stove limit 1? NO Correct wiring between stove limit 1 and cabinet limit. YES (6) Is there voltage across terminals 7 & 4 of motor control relay? YES Replace motor control relay. NO 70 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 NetMaster Troubleshooting 30. Unit Will Not Heat – Gas (continued) (12) Is there voltage across stove limit 1? YES Replace stove limit 1. NO Is there gas flow through the gas valve? NO Replace gas valve coils or complete gas valve. NO Replace high voltage ignition cable or igniter. YES (13) Is there voltage to the input side of the stove limit 2? NO Correct wiring to input side of stove limit 2 and stove limit 1. YES Does the igniter spark? YES (14) Is there voltage across stove limit 2? NO Replace stove limit 2. YES YES Is there a flame? Unit operational. NO (15) Is there voltage to terminal 2 of the Ignition Control Module (ICM)? NO Correct wiring between terminal 2 of ICM and stove limit. YES Note: Make sure unit is not in a lock out condition. (16) Is there voltage at terminal 1 of ICM board? NO Replace ICM board. YES (17) Is there voltage across the coils of the gas valve? NO Correct wiring between gas valve and ICM board. YES TMB2235S TMB2235S Please see following 2 pages for wiring diagram information. 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 71 NetMaster Troubleshooting Unit Will Not Heat – Gas (Sheet 1 of 2) 1 7 2 5 4 6 3 10 8 12 99 14 13 11 72 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 NetMaster Troubleshooting Unit Will Not Heat – Gas (Sheet 2 of 2) 7 15 16 99 17 TMB2240S TMB2240S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 73 Section 7 Hybrid Timer Control Troubleshooting Models with QT, SD and SX Control Suffixes WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002 31. Coins Ignored When Entered Gas and electric heat. Single and three phase power supply. Start coin drop diagnostic tests. Does the light on the control increment properly? YES Exit diagnostic testing and reset control. (Prompting for vend price) NO Reconnect and run diagnostic test again. NO Reconnect and run diagnostic test again. NO Is connector H2 on the control firmly seated in its receptacle? YES Is the 3 pin connector between coin drop and control connected correctly? YES Are wires exiting coin drop optical sensor cracked or broken? YES Replace coin drop or optic switch. NO Replace coin drop. If problem still exists then replace the electronic control. 74 TMB2051S TMB2051S © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting 32. Control Has No Display – OPL Models Gas, steam and electric heat. Single and three phase supply. Is there voltage supplied to the unit? NO Connect supply voltage and run unit. (6) Check H6-1 (+) and H6-2 (-) for +5 VDC. NO Replace hybrid control assembly. YES YES Note : Reference voltage to supply neutral. (1) Is there voltage to the input side of the primary fuse(s)? NO Correct wiring between primary fuse and supply. Replace display assembly. YES (2) Is there voltage to the output side of the primary fuse(s)? NO Replace primary fuse. YES (3) Is there voltage across the primary side of the transformer? NO Correct wiring between transformer and primary fuse. YES (4) Is there voltage across 2 & 3 of transformer secondary? NO Replace transformer YES (5) Is there volt age across terminals H1-3 & H1-1 on hybrid timer? NO Correct wiring between hybrid timer and transformer secondary. YES TMB2000S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 75 Hybrid Timer Control Troubleshooting Control Has No Display – OPL Models (Sheet 1 of 2) 1 2 4 3 TMB2019S 76 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting 5 6 TMB1970S Control Has No Display – OPL Models (Sheet 2 of 2) 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 77 Hybrid Timer Control Troubleshooting 33. Display Flashes “dr” With Door Closed – OPL Models (1) Is there voltage between H4-7 & H1-3 on the control? Gas, steam and electric heat. Single and three phase power supply. (6) YES Replace hybrid control. NO Is there voltage at the input of the secondary fuse? NO Correct wiring between secondary fuse and transformer. YES (7) Is there power supplied to the unit? NO Plug unit in and run it. Is there voltage at output side of secondary fuse? NO Replace secondary fuse. YES YES (8) (2) Is there voltage at input of primary fuses? NO Correct wiring between primary fuse and power supply. Is there voltage at COM of door switch? NO Connect wiring between COM and output of secondary fuse. YES YES (9) (3) Is there voltage at output side of the primary fuses? NO Replace primary fuse(s). With door closed, is there voltage to NO of door switch? NO Replace door switch. YES YES (4) Is there voltage across terminals 1 & 2 of transformer primary? NO Correct wiring between primary fuse and transformer. Is there voltage at COM of the lint drawer switch? NO Connect wiring between door switch and COM of lint drawer switch. YES YES With lint drawer closed, is there power at NO connection? (5) Is there voltage across terminals 2 & 3 of transformer secondary? YES 78 NO NO Replace lint drawer switch. Replace transformer. YES Correct wiring between lint drawer switch and hybrid control. © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT TMB2001S 70304901 Hybrid Timer Control Troubleshooting Display Flashes “dr” With Door Closed – OPL Models (Sheet 1 of 2) 2 4 3 5 TMB1971S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 79 Hybrid Timer Control Troubleshooting 11 7 6 8 9 10 1 TMB1970S Display Flashes “dr” With Door Closed – OPL Models (Sheet 2 of 2) 80 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting 34. Vend Satisfied, No In Use LED – Coin Models Vend Satisfied, No In Use LED – Coin Models (5) (1) Is there voltage at the input side of the primary fuse? No Correct wiring between the primary fuse and the terminal block. Is there voltage at the input side of the secondary fuse? No Correct wiring between the transformer and the secondary fuse. Yes (6) Yes (2) Is there voltage at the output side of the primary fuse? No Replace the primary fuse. No Replace secondary fuse. Yes (7) Yes (3) Is there voltage at the input side of the transformer? Is there voltage at the output side of the secondary fuse? No Correct wiring between the primary fuse and the transformer. Is there power to the conrol of H1-1 and H1-3? No Correct wiring between fuse and control. Yes (8) Yes (4) Is there voltage at the output side of the transformer? No Replace transformer. Is there voltage at COM of the door switch? No Correct wiring between the secondary fuse and COM of the door switch. Yes continued on next page Yes TMB2022S-a 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 81 Hybrid Timer Control Troubleshooting 34. Vend Satisfied, No In Use LED – Coin Models (continued) continued from previous page (13) (9) Is there voltage at NO of the door switch? No Replace the door switch. Is the H6 connection plugged in securely on the control? No Re-seat the H6 connection to the control. Yes Yes (10) Is there voltage at COM of the lint drawer switch? No Correct wiring between the door switch and lint drawer switch. Yes (11) Is there voltage at NO of the lint drawer switch? No Re-seat the optic-coupler harness to the control. Yes No Replace the lint drawer switch. Yes (12) Is there power at H3-1 and H3-3 on the control? Is the optic-coupler harness connected securely into the control harness? Replace the opto-coupler on the coin drop. No Replace the control. Yes No Correct wiring between the lint drawer switch and H3 on the control. Unit is operational. Yes TMB2022S-b 82 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting Vend Satisfied, No In Use LED – Coin Models (Sheet 1 of 2) 3 2 1 4 TMB1971S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 83 Hybrid Timer Control Troubleshooting 10 6 5 7 8 9 11 12 TMB1972S Vend Satisfied, No In Use LED – Coin Models (Sheet 2 of 2) 84 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting 35. In Use LED Lit, No Motor Run – Coin Models In Use LED Lit, No Motor Run – Coin Models (5) (1) Is there continuity through the start switch circuit? No Correct or replace the start switch or start switch wiring. Is there voltage at the input side of the motor relay? No Correct wiring between the motor relay and terminal block. Yes (6) Yes (2) Is there voltage at H3-6 on the control? No Replace the control. Is there voltage at the output side of the motor relay? No Replace the motor relay. Yes (7) Yes (3) Is there voltage at A1 on the motor relay? No Correct wiring between the control and the motor relay A1. Is there voltage across the lines of the motor? No Correct wiring between the motor and motor relay. Yes Yes Replace the motor. (4) Is there voltage across A1 and A2 on the motor relay? No Correct wiring between the control and the motor relay A2. Yes 70304901 TMB2023S © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 85 Hybrid Timer Control Troubleshooting 1 2 3 4 TMB1972S In Use LED Lit, No Motor Run – Coin Models (Sheet 1 of 2) 86 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting In Use LED Lit, No Motor Run – Coin Models (Sheet 2 of 2) 5 6 7 TMB1971S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 87 Hybrid Timer Control Troubleshooting 36. Motor Will Not Start/Run – Coin Models Note: test conducted with vend (1) price satisfied and start button pressed. Is there voltage across H3-1 and H3-6 on the electronic control ? NO Gas, electric and steam heat. Single and three phase power supply. Refer to Vend Satisfied, No In Use LED - Coin Models flowchart. Is there voltage across terminals 1 & 4 of the fan motor? YES (2) Is there voltage across H3-4 and H3-6 on the electronic control? NO Replace control. Does the fan motor run? NO Correct wiring to coil of motor relay . 3 phase. Also see Note on next page NO Replace fan motor. Single phase Three phase. Also see Note on next page. (12) Is the unit equipped with single phase or three phase power? Is there supply voltage between 3 & 1 of motor control relay? Single phase (4) NO Correct wiring between terminal 5 and power supply. NO Replace motor control relay. NO Correct wiring between 3, 1 and . power supply. YES (13) Is there voltage across terminals 3 & 4 and 1 & 2? YES (5) Is there voltage at terminal 6 of motor control relay? Correct wiring between fan motor and motor control relay. YES Is unit equipped with single phase or three phase power supply? YES Is there voltage at terminal 5 of the motor control relay? NO YES YES (3) Is there voltage across the coil of the motor control relay? (6) YES Replace motor control relay. NO (7) YES Is there voltage at terminal 1 of motor control relay? (10) Is there supply voltage to terminal 5 and 3 of the motor control relay? NO Correct wiring between 5, 3 and power supply. YES (11) Is there votlage across 5 & 6 and 3 & 4? Replace motor control relay. Correct wiring between terminal 6 of motor control relay and supply. YES (8) Is there voltage at terminal 2 of motor control relay? YES NO NO Replace motor control relay. YES NO 88 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting 36. Motor Will Not Start/Run – Coin Models (continued) (9) Is there voltage across terminals 1 & 4 of cylinder motor? NO Correct wiring between fan motor and motor control relay. NO Correct wiring between cylinder motor and motor control relay. YES Does the cylinder motor run? NO Replace cylinder motor. NO Replace fan motor. YES Motors are operational. Single phase Note: For high voltage three phase supply (380 volts or higher), the cylinder and fan motors are supplied by L1, L2, L3 through the motor relay terminals T1, T2, T3. Make the appropriate adjustments when doing voltage checks. Also next NO YES NO NO Correct wiring between 3, 1 and . power supply. Replace motor control relay. Correct wiring between terminal 6 of motor control relay and supply. Replace motor control relay. TMB2004S TMB2004S Please see following 2 pages for wiring diagram information. 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 89 Hybrid Timer Control Troubleshooting 1 2 3 TMB1972S Motor Will Not Start/Run – Coin Models (Sheet 1 of 3) 90 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting Motor Will Not Start/Run – Coin Models (Sheet 2 of 3) 4 7 5 8 9 6 TMB1971S 1 Phase 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 91 Hybrid Timer Control Troubleshooting Motor Will Not Start/Run – Coin Models (Sheet 3 of 3) 10 12 13 11 11 13 TMB1973S 3 Phase 92 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting 37. Motor Will Not Start/Run – OPL Models Note: test conducted with vend (1) price satisfied and start button pressed. Is there voltage across H4-7 and H4-4 on the electronic control ? NO Gas, electric and steam heat. Single and three phase power supply. Refer to Control Has No Display - OPL Models flowchart. Is there voltage across terminals 1 & 4 of the fan motor? YES (2) Is there voltage across H4-3 and H4-4 on the electronic control? NO Replace control. Does the fan motor run? NO Correct wiring to coil of motor relay . 3 phase. Also see Note on next page NO Replace fan motor. Single phase Three phase. Also see Note on next page. (12) Is the unit equipped with single phase or three phase power? Is there supply voltage between 3 & 1 of motor control relay? Single phase (4) NO Correct wiring between terminal 5 and power supply. NO Replace motor control relay. NO Correct wiring between 3, 1 and . power supply. YES (13) Is there voltage across terminals 3 & 4 and 1 & 2? YES (5) Is there voltage at terminal 6 of motor control relay? Correct wiring between fan motor and motor control relay. YES Is unit equipped with single phase or three phase power supply? YES Is there voltage at terminal 5 of the motor control relay? NO YES YES (3) Is there voltage across the coil of the motor control relay? (6) YES Replace motor control relay. NO (7) YES Is there voltage at terminal 1 of motor control relay? (10) Is there supply voltage to terminal 5 and 3 of the motor control relay? NO Correct wiring between 5, 3 and power supply. YES (11) Is there votlage across 5 & 6 and 3 & 4? Replace motor control relay. Correct wiring between terminal 6 of motor control relay and supply. YES (8) Is there voltage at terminal 2 of motor control relay? YES NO NO Replace motor control relay. YES NO 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 93 Hybrid Timer Control Troubleshooting 37. Motor Will Not Start/Run – OPL Models (continued) (9) Is there voltage across terminals 1 & 4 of cylinder motor? NO Correct wiring between fan motor and motor control relay. NO Correct wiring between cylinder motor and motor control relay. YES Does the cylinder motor run? NO Replace cylinder motor. NO Replace fan motor. YES Motors are operational. Single phase Note: For high voltage three phase supply (380 volts or higher), the cylinder and fan motors are supplied by L1, L2, L3 through the motor relay terminals T1, T2, T3. Make the appropriate adjustments when doing voltage checks. Also next NO YES NO NO Correct wiring between 3, 1 and . power supply. Replace motor control relay. Correct wiring between terminal 6 of motor control relay and supply. Replace motor control relay. TMB2020S TMB2020S Please see following 2 pages for wiring diagram information. 94 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting 1 2 3 TMB1970S Motor Will Not Start/Run – OPL Models (Sheet 1 of 3) 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 95 Hybrid Timer Control Troubleshooting Motor Will Not Start/Run – OPL Models (Sheet 2 of 3) 4 7 5 8 9 6 TMB1971S 1 Phase 96 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting Motor Will Not Start/Run – OPL Models (Sheet 3 of 3) 10 12 13 11 11 13 TMB1973S 3 Phase 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 97 Hybrid Timer Control Troubleshooting 38. Unit Will Not Heat – Gas – Coin Models Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (1) (7) Is there voltage at FS-2 of hybrid control? NO Correct wiring between FS-2 and NO of lint drawer. YES Is there voltage at terminal 3 of fan motor centrifugal switch? NO Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay. YES Replace hybrid control. Replace thermistor. (2) (8) NO NO Is there voltage at FS-1 of hybrid control? Is the thermistor operational? YES Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? NO (9) NO Correct wiring between COM of airflow switch and FS-1 of hybrid control. Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. YES YES (10) (4) Is there voltage across COM & NO terminal of airflow switch? Replace fan motor. YES (3) Is there voltage at COM of airflow switch? YES YES Check for proper function of airflow switch and replace if necessary. NO YES Is there voltage across cabinet limit? Replace cabinet limit. NO (5) Is there voltage at terminal 13 of motor control relay? (11) NO Correct wiring between terminal 7 on motor control relay and NO terminal on airflow switch. YES Is there voltage to the input side of the stove limit 1? NO Correct wiring between stove limit 1 and cabinet limit. YES (6) Is there voltage across terminals 13 & 14 of motor control relay? YES Replace motor control relay. NO 98 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting 38. Unit Will Not Heat – Gas – Coin Models (continued) (12) Is there voltage across the stove limit 1? YES YES Replace the stove limit. NO Is there gas flow through the gas valve? NO Replace gas valve coils or complete gas valve. NO Replace high voltage ignition cable or igniter. YES (13) NO Is there voltage to input side of stove limit 2? Correct wiring between stove limit 1 and stove limit 2. YES Does the igniter spark? YES (14) Is there voltage across stove limit 2? YES YES Replace stove limit 2. Is there a flame? Unit operational. NO NO (15) Is there voltage to terminal 2 of the Ignition Control Module (ICM)? NO Correct wiring between terminal 2 of ICM and stove limit 2. YES Note: Make sure unit is not in a lock out condition. (16) NO Is there voltage at terminal 1 of ICM board? Replace ICM board. YES (17) Is there voltage across the coils of the gas valve? NO Correct wiring between gas valve and ICM board. YES TMB2005S TMB2005S Please see following page for wiring diagram information. 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 99 Hybrid Timer Control Troubleshooting 13 11 9 1 10 2 12 3 4 14 5 8 6 7 15 16 17 TMB1972S Unit Will Not Heat – Gas – Coin Models 100 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting 39. Unit Will Not Heat – Gas – OPL Models Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (7) (1) Is there voltage at H4-1 of hybrid control? NO Is the thermistor operational? NO Replace thermistor YES Is there voltage across cabinet limit? Replace cabinet limit. YES YES NO Replace hybrid control. (2) Is there voltage at terminal 13 of motor control relay? (8) NO Correct wiring between terminal 13 on motor control and H4-1 on hybrid control. YES Is there voltage to the input side of the stove limit 1? NO Correct wiring between stove limit 1 and cabinet limit. YES (3) Is there voltage across terminals 13 & 14 of motor control relay? (9) YES Replace motor control relay. NO Is there voltage across the stove limit 1? YES Replace the stove limit. NO (10) (4) Is there voltage at terminal 3 of fan motor centrifugal switch? NO Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay. YES NO Correct wiring between stove limit 1 and stove limit 2. YES (5) Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? Is there voltage to input side of stove limit 2? (11) YES Replace fan motor. Is there voltage across stove limit 2? YES Replace stove limit 2. NO NO (6) Is there voltage to the input side of the cabinet limit? YES 70304901 (12) NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. Is there voltage to terminal 2 of the Ignition Control Module (ICM)? NO Correct wiring between terminal 2 of ICM and stove limit 2. YES © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 101 Hybrid Timer Control Troubleshooting 39. Unit Will Not Heat – Gas – OPL Models (continued) Note: Make sure unit is not in a lock out condition. (13) Is there voltage at terminal 1 of ICM board? NO Replace ICM board. YES (14) Is there voltage across the coils of the gas valve? NO Correct wiring between gas valve and ICM board. YES (15) Is the airflow switch working properly? NO Replace airflow switch YES Is there gas flow through the gas valve? NO Replace gas valve coils or complete gas valve. NO Replace high voltage ignition cable or igniter. YES Does the igniter spark? YES YES Is there a flame? Unit operational. NO TMB2006S TMB2006S Please see following page for wiring diagram information. 102 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting 10 8 6 1 9 2 3 11 4 7 5 12 13 14 TMB1970S Unit Will Not Heat – Gas – OPL Models 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 103 Hybrid Timer Control Troubleshooting 40. Unit Will Not Heat – Steam – OPL Models (T30 Models Only) Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (6) (1) Is there voltage at H4-1 of hybrid control? NO Is the thermistor operational? NO YES YES Replace hybrid control. Replace thermistor Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. YES (7) (2) Is there voltage on terminal 13 of motor control relay? NO Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch. Is there voltage across cabinet limit? YES Replace cabinet limit. NO YES (8) (3) Is there voltage across terminals 13 & 14 of motor control relay? YES Is there voltage across the coil of the steam valve? NO Replace motor control relay. Correct wiring between steam valve and cabinet limit. YES NO (4) Is there voltage on terminal 3 of fan motor centrifugal switch? NO Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay. Does the steam valve open allowing steam to flow? No Replace or rebuild steam valve. YES (5) Unit operational. Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? YES Replace fan motor. TMB2007S TMB2007S NO 104 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting 1 2 3 4 7 5 6 8 TMB1970S Unit Will Not Heat – Steam – OPL Models (T30 Models Only) 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 105 Hybrid Timer Control Troubleshooting 41. Unit Will Not Heat – Electric Coin (T30 Models Only) Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (1) Is there voltage at FS-2 of hybrid control? (7) NO Correct wiring between FS-2 and lint drawer switch NO. YES Is there voltage at terminal 3 of fan motor centrifugal switch? NO Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 14 of motor control relay. YES Replace hybrid control. Replace thermistor. (2) (8) NO Is there voltage on FS-1 of hybrid control? Is the thermistor operational? YES Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? NO NO (9) NO Correct wiring between COM of airflow switch and FS-1 of hybrid control. YES Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. YES (10) (4) Is there voltage across COM & NO terminal of airflow switch? Replace fan motor. YES (3) Is there voltage at COM of airflow switch? YES YES Check for proper function of airflow switch and replace if necessary. NO Is there voltage across cabinet limit? YES Replace cabinet limit. NO (5) Is there voltage at terminal 13 of motor control relay? (11) NO Correct wiring between terminal 13 on motor control relay and hybrid control. YES Is there voltage to the input side of the stove limit? NO Correct wiring between stove limit and cabinet limit. YES (6) Is there voltage across terminals 13 & 14 of motor control relay? YES Replace motor control relay. NO TMB1989S 106 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting 41. Unit Will Not Heat – Electric Coin (T30 Models Only) (continued) Note: Please make the oppropriate adjustments if your unit is single phase. (12) Is there voltage across the stove limit? YES Replace the stove limit. NO (13) Is there voltage across the coil(s) of the heater contactor(s)? NO Correct wiring between heater contactor and stove limit. NO Correct wiring between HC1 and line voltage. NO Correct wiring between HC2 and line voltage. NO Check for proper operation of contactors, replace them if necessary. YES (14) Is there voltage to the T1, T2 and T3 terminals of HC1? YES (15) Is there voltage to the T1, T2 and T3 terminals of HC2? YES (16)(17)(18) Is there voltage across L3 & L1, L1 & L2 and L2 & L3? Unit is operational YES Do all elements produce heat? NO Check elements for shorts or opens. Check wires between contactors and elements. YES TMB2008S TMB2008S Please see following 2 pages for wiring diagram information. 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 107 Hybrid Timer Control Troubleshooting TMB1974S 11 2 1 10 3 12 4 9 8 6 5 13 7 Unit Will Not Heat – Electric Coin (T30 Models Only) (Sheet 1 of 2) 108 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting Unit Will Not Heat – Electric Coin (T30 Models Only) (Sheet 2 of 2) 14 15 16 17 18 TMB1975S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 109 Hybrid Timer Control Troubleshooting 42. Unit Will Not Heat – Electric OPL (T30 Models Only) Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (6) (1) Is there voltage at H4-1 of hybrid control? NO Is the thermistor operational? NO Replace thermistor Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. YES YES YES Replace hybrid control. (7) (2) Is there voltage at terminal 13 of motor control relay? NO Correct wiring between terminal 13 on motor control relay and hybrid control. Is there voltage across cabinet limit? YES Replace cabinet limit. NO YES (8) (3) Is there voltage across terminals 13 & 14 of motor control relay? YES Replace motor control relay. Is there voltage to the input side of the stove limit? NO Correct wiring between stove limit and cabinet limit. YES NO (9) (4) Is there voltage at terminal 3 of fan motor centrifugal switch? NO Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 14 of motor control relay. Is there voltage across the stove limit? YES Replace the stove limit. NO YES (10) (5) Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? Is there voltage across the coil(s) of the heater contactor(s)? YES NO Replace fan motor. Correct wiring between heater contactor and stove limit. YES NO TMB1989S 110 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting 42. Unit Will Not Heat – Electric OPL (T30 Models Only) (continued) Note: Please make the oppropriate adjustments if your unit is single phase. (11) Is there voltage to the T1, T2 and T3 terminals of HC1? NO Correct wiring between HC1 and line voltage. NO Correct wiring between HC2 and line voltage. NO Check for proper operation of contactors, replace them if necessary. YES (12) Is there voltage to the T1, T2 and T3 terminals of HC2? YES (13)(14)(15) Is there voltage across L3 & L1, L1 & L2 and L2 & L3? Unit is operational YES Do all elements produce heat? NO Check elements for shorts or opens. Check wires between contactors and elements. YES TMB2009S TMB2009S Please see following 2 pages for wiring diagram information. 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 111 Hybrid Timer Control Troubleshooting 8 1 2 3 9 4 7 5 6 10 TMB1976S Unit Will Not Heat – Electric OPL (T30 Models Only) (Sheet 1 of 2) 112 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Hybrid Timer Control Troubleshooting Unit Will Not Heat – Electric OPL (T30 Models Only) (Sheet 2 of 2) 12 11 13 14 15 TMB1975S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 113 Hybrid Timer Control Troubleshooting WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002 43. Error Codes Display Corrective Action Open thermistor error. • • SH Shorted thermistor error. • • Check thermistor. Replace if inoperative. Check wiring between control and thermistor. Refer to wiring diagram for proper wiring. • Check control. Replace if inoperative. Check thermistor. Replace if inoperative. Check wiring between control and thermistor. Refer to wiring diagram for proper wiring. • Check control. Replace if inoperative. AF-1 Airflow switch closed when cycle started. • Check airflow switch. Replace if inoperative. AF-2 Airflow switch failed to closed after cycle • Check airflow switch. Replace if started. inoperative. AF (flashing) 114 Definition OP Airflow stich opened/closed 5 or more times in a running cycle. • Check airflow switch. Replace if inoperative. © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Section 8 Quantum Control Troubleshooting Models with LC, LX, LY, WC, WX and WY Control Suffixes WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 115 Quantum Control Troubleshooting 44. No Infrared Communication Gas and electric heat. Single and three phase power supply. Attempt to communicate with the electronic control from the PDA. Check the following: Is there a response of any kind from the electronic control? No Aim PDA closer and try again. Yes Does the electronic control display E:OF or -C-? Does the control respond? No - ls the battery low on the PDA? - Is the IR window covered or blocked on the control? - If needed, replace the electronic control. Yes -C- Communication sequence checks out. E:OF Check the following: - Is IR communication disabled by manual programming? - Is the IR window on the control covered or blocked? - If needed, change control board. TMB2269S 116 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Quantum Control Troubleshooting 45. Coins Ignored When Entered Gas and electric heat. Single and three phase power voltage. Start coin drop diagnostic tests. Does the display on the electronic control increment properly? NOTE: Refer to Programming Manual for test procedures. Yes Exit diagnostic testing and reset control. (Prompting for vend price) No Reconnect and run diagnostic test again. No Reconnect and run diagnostic test again. No Is connector H5 on the control firmly seated in its receptacle? Yes Is the 3 pin connector between coin drop and control connected correctly? Yes Are wires exiting coin drop optical sensor cracked or broken? Yes Replace coin drop. No Replace coin drop. If problem still exists, then replace the electronic control. TMB1794S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 117 Quantum Control Troubleshooting 46. No Display (1) Is there 24 volts AC across terminals H1-1 and H1-3 on control? Yes Replace the electronic control. No (2) Is the secondary fuse good? No Replace the fuse. Yes (3) Is there 24 volts AC across the red/blue and wht/blue wires on the secondary side of the transformer? Yes Correct the wiring between the transformer secondary and the electronic control. No (4) Is line voltage present across the black and lt blue wires on the primary side of the transformer? Yes Replace the transformer. No (5) Is the primary fuse good? No Replace the primary fuse. Yes Correct wiring from terminal block to transformer. Verify that the unit is connected to power and the power is on. TMB2299S 118 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Quantum Control Troubleshooting No Display 5 1 4 2 3 TMB2300S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 119 Quantum Control Troubleshooting 47. “Door Open” Indicator Note: All voltages are to be measured to transformer common, unless otherwise stated. “Door Open” Indicator (1) Is there 24 volts across terminals H5-7 and H5-4 on the control? Yes Replace control. No (2) Is there 24 volts to the normally open contact on the lint panel switch? Yes Correct the wiring between the N.O. terminal on the lint panel switch to terminal H2-1 on the control. (6) Is there 24 volts to the output side of the secondary fuse? No (7) Is there 24 volts to the input side of the secondary fuse? Yes (3) Is there 24 volts to the common terminal of the lint panel switch? Yes Replace the lint panel switch. (8) (4) Is there 24 volts at the normally open terminal of the door switch with the door closed? Yes Correct the wiring between the door switch and the lint panel switch. Yes Replace transformer. No Is the primary fuse good? Check door switch Yes for proper operation. Replace if necessary. Yes No Replace the primary fuse. Correct wiring from terminal block to transformer. Verify that unit is connected to power and the power is on. No 120 Correct wiring between the transformer and the fuse. (10) No (5) Is there 24 volts to the common terminal of the door switch? Yes No (9) Is line voltage present across the black and lt blue wires on the primary side of the transformer? No Check fuse. Replace if necessary. No Is there 24 volts across terminals 2 and 3 of the transformer secondary? No Yes Correct the wiring between the fuse and the common terminal of the door switch. TMB2271S © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Quantum Control Troubleshooting “Door Open” Indicator 10 1 2 3 4 9 8 7 6 5 TMB2300S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 121 Quantum Control Troubleshooting 48. No Start/Run *Note: For steps 2 and 3. For 208/240 1 phase, both lines to the motor are controlled by contacts. Please check second set of contacts. For 3 phase units, the three legs supplied to the moter will be controlled by N.O. contacts. Please check all three legs. (1) Is there line voltage across terminals 1 and 4 of the motor? Yes Check motor for proper operation. Replace if necessary. No (2) Is there voltage on the output of the motor relay?* (5) Yes Correct wiring between the motor relay and the motor. No Is there 24 volts at terminal H5-3 on the control? Measured to transformer neutral. Yes Correct wiring between control and motor relay coil. No (3) Is there voltage to the input side of the motor relay?* (6) No Correct wiring supplying voltage to the contacts of the motor relay. Yes Is there 24 volts to terminal H5-7 on the control? Yes Press the start button. If machine does not start, replace control. No (4) Is there 24 Volts across the coil of the relay? Yes Check relay for proper operation. Replace if necessary. Correct wiring to the control. Refer to “ ‘Door Open’ Indicator.” No TMB2272S 122 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Quantum Control Troubleshooting No Start/Run 1 3 2 6 5 4 TMB2300S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 123 Quantum Control Troubleshooting 49. Unit Will Not Heat – Gas Note: Tests are conducted with unit running and calling for heat. (6) All voltage checks are referenced to transformer neutral. Is there voltage at terminal 5 of the fan motor relay? (1) Is there voltage at H5-13 of control? Correct wiring between H5-13 and N.O. of airflow switch. No No Check motor or replace if necessary. No Correct wiring between cabinet limit and terminal 5 of fan motor. No Check cabinet limit for proper operation. Replace if necessary. Yes (7) Yes Replace control. Replace thermistor. (2) No Is there voltage at H5-1 of control? No Is the thermistor operational? Yes Yes Yes (8) Is there voltage to the output of the cabinet limit? (3) Is there voltage at input terminal of the motor control relay? Is there voltage to the input of the cabinet limit? No Correct wiring between input and H5-1. Yes (9) Yes Is there voltage to the input of the stove limit? (4) Is there voltage at the output terminal of the fan motor relay? No Correct wiring between cabinet limit and stove limit thermostat. No Replace relay. Yes (10) Yes Is there voltage to the output side of the stove limit? (5) Is there voltage at terminal 3 of the fan motor? Yes No Check wiring between motor terminal 3 and motor relay. No Check operation of stove limit. Replace if necessary. Yes Continued on next page TMB2275S-a 124 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Quantum Control Troubleshooting 49. Unit Will Not Heat – Gas (continued) Yes Is there a flame? Continued from previous page Unit operational. No (11) Is there voltage to terminal 2 of the Ignition Control Module (ICM)? No Correct wiring between terminal 2 of ICM and stove limit. Yes Note: Make sure unit is not in a lockout condition. (12) Is there voltage at terminal 1 of ICM board? No Replace ICM board. Yes (13) Is there voltage across the coils of the gas valve? No Correct wiring between gas valve and ICM board. No Replace gas valve coils or complete gas valve. No Replace high voltage ignition cable or igniter. Yes Is there gas flow through the gas valve? Yes Does the igniter spark? Yes TMB2275S-b Please see following page for wiring diagram information. 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 125 Quantum Control Troubleshooting Unit Will Not Heat – Gas 1 2 3 4 5 6 8 10 7 9 TMB2300S 11 12 126 13 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Quantum Control Troubleshooting 50. Unit Will Not Heat – Steam Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (6) (1) Correct wiring between H5-13 and N.O. of airflow switch. No Is there voltage at H5-13 of control? No Check motor or replace if necessary. No Correct wiring between cabinet limit and terminal 5 of fan motor. No Check cabinet limit for proper operation. Replace if necessary. No Check steam valve for proper operation. Replace if necessary. Yes Yes Replace control. Replace thermistor. (2) (7) No Is there voltage at H5-1 of control? Is there voltage at terminal 5 of fan motor relay? Is there voltage to the input of the cabinet limit? No Is the thermistor operational? Yes Yes Yes (8) (3) Is there voltage at input terminal of the motor control relay? No Correct wiring between input terminal and H5-1. Yes Yes (9) (4) Is there voltage at the output terminal of the fan motor relay? Is there voltage to the output of the cabinet limit? No Replace relay. Does the steam valve open? Yes Yes (5) Is there voltage at terminal 3 of the fan motor? No Check wiring between motor terminal 3 and motor relay. Verify that the correct steam is supplied to the unit. Verify that the steam valve and other items were installed according to the Installation Manual. Yes TMB2276S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 127 Quantum Control Troubleshooting Unit Will Not Heat – Steam 1 2 3 4 5 6 8 7 9 128 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT TMB2300S 70304901 Quantum Control Troubleshooting 51. Unit Will Not Heat – Electric Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (6) (1) Correct wiring between H5-13 and N.O. of airflow switch. No Is there voltage at H5-13 of control? Check motor or replace if necessary. No Correct wiring between cabinet limit and terminal 5 of fan motor. No Check cabinet limit for proper operation. Replace if necessary. Replace control. Replace thermistor. (2) (7) No Is there voltage to the input of the cabinet limit? No Is the thermistor operational? Yes Yes Yes (8) (3) Is there voltage at input terminal of the motor control relay? No Correct wiring between input terminal and H5-1. (9) (4) Is there voltage at the output terminal of the fan motor relay? No Replace relay. Is there voltage to the input of the stove limit? No Correct wiring between stove limit and normally open terminal of the airflow switch. Yes Yes (10) (5) Is there voltage at terminal 3 of the fan motor? Is there voltage to the output of the cabinet limit? Yes Yes Yes No Yes Yes Is there voltage at H5-1 of control? Is there voltage at terminal 5 of fan motor relay? No Check motor for proper operation. Replace if necessary Is there voltage to the output side of the stove limit? No Check operation of stove limit. Replace if necessary. Yes Continued on next page TMB2277S-a 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 129 Quantum Control Troubleshooting 51. Unit Will Not Heat – Electric (continued) Continued from previous page (11) Is there voltage across the coil(s) of the heater contactor(s)? No Correct wiring between heater contactor and stove limit. No Correct wiring between HC1, HC2 and line voltage. No Check for proper operation of contactors. Replace if necessary. Yes (12) Is there voltage to the input terminals of HC1 and/or HC2? Yes (13) Is there voltage to the output side of HC1/HC2 contacts? Yes Do all elements produce heat (glow a slight orange color)? No Check elements for shorts or opens. Check wires between contactors and elements. Yes Unit is operational. TMB2277S-b Please see following page for wiring diagram information. 130 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Quantum Control Troubleshooting Unit Will Not Heat – Electric 12 13 1 2 5 6 4 3 8 7 9 10 11 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT TMB2301S 131 Quantum Control Troubleshooting 52. CE Models No Display (1) Is there voltage across H1-1 and H1-3 on the control? (5) Yes Replace the control. Is there line voltage on the output side of the primary fuse? Yes Correct wiring between primary fuse and transformer. No No (2) Is there voltage coming out of fuse F4? (6) Yes Correct wiring between fuse F4 and control. Is there line voltage on the input side of primary fuse? Yes Replace primary fuse. No No (2) No Is fuse F4 good? Replace fuse. Verify that unit is plugged in. Correct wiring between supply terminals and fuse F1. Yes (3) Is there voltage across terminals 1 and 4 of the transformer? Yes Correct wiring between transformer and fuse. No (4) Is line voltage supplied to the transformer primary? Yes Check transformer for operation. Replace if necessary. No TMB2288S 132 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Quantum Control Troubleshooting CE Models No Display 6 5 4 3 2 1 TMB2302S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 133 Quantum Control Troubleshooting CE Models “Door Open” Indicator Note: All voltage checks are referenced to the transformer common unless otherwise stated. (6) (1) Is there voltage across terminals H5-7 and H5-3 on the control? Yes Replace control. No Is there voltage on output side of F3? Yes Correct wiring between F3 and DS. No (7) (2) Is there voltage at COM terminal of lint door switch (LDS)? Yes Correct wiring between loading door and control. Is there voltage to input side of F3? Yes Replace fuse. No No (8) (3) Is there voltage at N.C. terminal of LDS? Yes Make sure lint door is closed. Check function of LDS. Replace if necessary. Is there voltage on the secondary side of transformer? Yes Correct wiring between fuse and transformer. Yes Replace transformer. No No (9) (4) Is there voltage at COM terminal of door switch (DS)? Yes Correct wiring between DS and LDS. Is there voltage supplied to the primary of the transformer? No No (5) Is there voltage at N.C. terminal of DS? (10) Yes Make sure door is closed. Check function of DS. Replace if necessary. Verify primary fuses are good. Replace if necessary. Check and correct wiring between power terminal block and transformer. Verify machine has supply voltage. No TMB2289S 134 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Quantum Control Troubleshooting CE Models “Door Open” Indicator 10 7 8 9 6 1 5 4 3 2 TMB2302S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 135 Quantum Control Troubleshooting 53. CE Models No Start/Run Note: Voltage checks referenced to transformer neutral unless otherwise stated. Note: Common can be neutral or live wire depending on voltage and phase. (1) Is there line voltage supplied to the motor? (4) Yes Check operation of motor. Replace if necessary. No Is there voltage across the coil of the motor relay? Check for proper operation of relay. Replace if necessary. Yes Correct wiring between control and motor relay. Yes Press start button. If machine doesn’t start, replace control. No (2) Is there voltage on the output side of the motor relay terminals? Check to common line. (5) Yes Correct wiring between motor relay and motor. No Is there voltage across H5-3 and H5-4 of the control? No (3) Is there voltage on the input side of the motor relay terminals? Check to common line. Yes Yes (6) No Correct wiring from line supply voltage to motor relay. Is there voltage to H5-7 on the control? No Correct wiring to control. Refer to “CE Models Door Open Indicator.” TMB2291S 136 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Quantum Control Troubleshooting CE Models No Start/Run 2 3 3 1 2 6 5 4 TMB2302S 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 137 Quantum Control Troubleshooting CE Models Will Not Heat – Gas/Steam Note: Test conducted with unit running and calling for heat. Note: Voltage checks referenced to neutral unless otherwise stated. (1) (7) Is there voltage on H5-13 on the control? No Check airflow switch (AFS) for proper operation. If needed correct wiring between AFS and H5-13. Is there voltage to input side of the cabinet limit (CT)? No Correct wiring between stove limit and MCS. No Check CT for proper operation. Replace if necessary. Yes Yes (2) (8) Is there voltage at H5-1 of the control? No Check thermistor for proper operation. Replace if necessary. Replace control if thermistor is good. Is there voltage to the output side of the CT? Yes Yes Steam See next page Gas (3) (9) No Is there voltage at terminal 14 of the K2 relay? Correct wiring between H5-1 on the control and terminal 14 of K2. (4) Correct wiring between ST-1 and CT. No Check function of ST-1. Replace if necessary. (10) No Is there voltage at N.O. terminal of the K2 relay? Check for proper operation of the K2 relay. Replace if necessary. Is there voltage on output side of ST-1? Yes Yes (5) (11) Is there voltage to the COM terminal of motor centrifical switch (MCS)? No Correct wiring between K2 relay and MCS. Is there voltage on terminal 4 of ignition control module? No Correct wiring between terminal 4 and ST-1. Yes Yes (6) (12) Is there voltage to the output side of the MCS? No Check MCS for proper operation. Replace motor if necessary. Is there voltage on terminal 2 of ignition module? No Correct wiring between terminal 2 and fuse F3. Yes Continued on next page 138 No Yes Yes Yes Is there voltage to input of ST-1? © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT TMB2292S-a 70304901 Quantum Control Troubleshooting 53. CE Models Will Not Heat – Gas/Steam (continued) Continued from previous page (GAS) (13) Is there voltage supplied to gas valve? Yes Check valve for proper operation. Replace if necessary. Verify correct pressure and gas supplied to machine. Yes Check SV for proper operation. Replace if necessary. Verify steam is properly supplied to machine. No Verify control is NOT going into lock-out. Correct wiring between valve and ICM. Replace ICM if necessary. Continued from previous page (Steam) (14) Is there voltage across steam valve (SV)? No Correct wiring between SV and CT. TMB2292S-b Please see following page for wiring diagram information. 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 139 Quantum Control Troubleshooting CE Models Will Not Heat – Gas/Steam 1 2 4 5 3 6 7 12 8 11 13 9 10 14 TMB2302S 140 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Quantum Control Troubleshooting 54. CE Models Will Not Heat – Electric Note: Test conducted with unit running and calling for heat. Note: Voltage checks referenced to neutral unless otherwise stated. (1) Is there voltage on H5-13 on the control? (7) No Check airflow switch (AFS) for proper operation. If needed correct wiring between AFS and H5-13. Is there voltage to input side of the cabinet limit (CT)? No Correct wiring between stove limit and MCS. No Check CT for proper operation. Replace if necessary. No Correct wiring between ST and CT. No Check function of ST. Replace if necessary. Yes Yes (2) Is there voltage at H5-1 of the control? (8) No Check thermistor for proper operation. Replace if necessary. Replace control if thermistor is good. Is there voltage to the output side of the CT? Yes Yes (3) Is there voltage at terminal 14 of the K2 relay? (9) No Correct wiring between H5-1 on the control and terminal 14 of K2. Is there voltage to input of ST? Yes Yes (4) Is there voltage at N.O. terminal of the K2 relay? (10) No Check for proper operation of the K2 relay. Replace if necessary. Is there voltage on output side of ST? Yes Yes (5) Is there voltage to the COM terminal of motor centrifical switch (MCS)? No Correct wiring between K2 relay and MCS. No Check MCS for proper operation. Replace motor if necessary. Continued on next page Yes (6) Is there voltage to the output side of the MCS? Yes TMB2294S-a 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 141 Quantum Control Troubleshooting 54. CE Models Will Not Heat – Electric (continued) Continued from previous page (11) Is there line voltage across element contactor coils? No Correct wiring to contact coils. No Replace contactors. Yes Do the contactors pull in? Yes Is there voltage on the output side of the contactor? No Check for voltage to input side. Correct wiring if necessary. Replace contactor if voltage supplied to input side. Yes Is there voltage supplied to elements? No Correct wiring between elements and contactors. Yes No Is heat produced? Check element for open CK1. Replace if necessary. Yes Unit operational. TMB2294S-b 142 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70304901 Quantum Control Troubleshooting CE Models Will Not Heat – Electric 2 1 4 5 3 6 7 9 11 TMB2303S 8 10 70304901 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 143
