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SERVICE DATA SHEET A01544401 PERFORMANCE DATA NO LOAD & NO DOOR OPENINGS AT 37°/0° CONTROL SETTING Type A with Run / Start Capacitor 65°F (18°C) Ambient 90°F (32°C) Ambient 90 to 100% 100% -5° to 2°F (-20° to -17°C) -1° to 3°F (-18° to -16°C) 34° to 39°F (1° to 4°C) 34° to 39°F (1° to 4°C) -2 to 6 psig (-14 to 41 kPa) -2 to 6 psig (-14 to 41 kPa) Operating Time Freezer Temperature Refrigerator Temperature Low Side Pressure High Side Pressure (last 1/3 cycle) 85 to 105 psig (586 to 724 kPa) Wattage (last 1/3 cycle) Base Voltage Test Blank UI display, no lights illuminated. Second Screen -- All LED lights on UI illuminated. -- Third Screen -- Blank UI display, no lights illuminated. 50 to 70 2 Defrost Heater Press power on-off Defrost heater on when “on”; off when “off”. .7 to .9 3* FF Light (Incandescent Models) Press power on-off FF lights on when “on”; off when “off” Heater IMPORTANT: PLEASE RETURN THIS SHEET TO ITS ORIGINAL LOCATION. Defrost Heater Termination Cabinet Size: Cut-in Cut-out Watts Ohms Cut-out 110°F (43.3°C) 135°F (57.2°C) 500 26.5 39°F (4°C) Electronic Timer - (ADC) Defrost 24 minutes every 6-96 hours of compressor run time. Watts RPM Amps 3.1 1100 CW Opposite Shaft 0.03 Running FREEZER ICE MAKER SPECIFICATIONS Opens at 48°F ( 9°C), Closes at 15° F ( -9°C) Heater Voltage 115 vac LINE NEUTRAL POWER ICE MAKER MOTOR -- OP Open FF Thermistor OP -- -- SH SH -- SY CF THERMOSTAT NO BLU BLK C MOLD HEATER 165 WATTS NO GRN / YEL P-1 C MOLD MOUNTING PLATE ICE MAKER NC RED NC C FZ FF Manual Defrost d F Open FZ Thermistor Display / Showroom 77 77 Shorted FF Thermistor Sabbath Sb Sb Shorted FZ Thermistor System Diagnostic UI to Main Control Board communication failure; on start up SY CE UI to Main Control Board communication error; after a period in operation SY EF Evaporator Fan Failure → Check at the connector from the power cord harness into the inverter board, located in the machine compartment. (PUR and WHT wires) → NC SHUTOFF SWITCH YELLOW WATER FILL SWITCH FZ Light Press power on-off With FZ door open, FZ lights on when “on”, off when “off” VCC Condenser Fan Press power on-off Fan running when “on”; stopped when “off” 41* Perfect Temp Drawer (PTD) Press power on-off PTD UI illuminated when “on”; off when “off” FZ UP and FF DOWN / Power-on-Reset (POR) 13* FF Light (LED Models) Press power on-off FF lights on when “on”; off when “off” FZ DOWN and FF UP / same to deactivate 38 VCC Compressor Press power on-off Compressor running when “on”; stopped when “off” FZ UP and FZ DOWN / FF UP to deactivate 15 Evaporator Fan Press power on-off Stopped when “off”. Listen for speed change from “LO” to “HI”. 20* FZ Light (LED Models) Press power on-off FZ lights on when “on”, off when “off” 22 Damper Press power on-off With inspection mirror, observe damper open when “OP”; closed when “CL” 23 FF Door Open/close FF door “CL” on UI when door closed; “OP” when open 24 FZ Door Open/close FZ door “CL” on UI when door closed; “OP” when open 29 FF Thermistor Activates automatically UI shows temperature sensed by FF thermistor; pass if within 10°F of temperature measured with gauge at FF thermistor location. “OP” if open; “SH” if short 30 FZ Thermistor Activates automatically UI shows temperature sensed by FZ thermistor; pass if within 10°F of temperature measured with gauge at FZ thermistor location. “OP” if open; “SH” if short 33 Ambient Thermistor @ Main Board Activates automatically UI shows temperature sensed at main board; pass if within +20°F/-10°F of temperature measured with gauge at main board location. “OP” if open; “SH” if short 39 Evaporator Thermistor Activates automatically UI shows temperature sensed by evaporator thermistor; pass if within 10°F of temperature measured with gauge at evaporator thermistor location. “OP” if open; “SH” if short 34* Ambient Thermistor @ UI Activates automatically UI shows temperature sensed at UI; pass if within +20°F/-10°F of temperature measured with gauge at UI location. “OP” if open; “SH” if short 0- Firmware Parameters Press power on-off Displays digit sequence; record 2- Main Board Firmware Press power on-off Displays digit sequence; record 4- UI Firmware Press power on-off Displays digit sequence; record FF UP and FF DOWN / same to deactivate No FF or FZ display, all UI LEDs on. Notes: • Always check for pin back-outs, pinched or damaged wires before replacing components. • Determine whether failure is caused by the component, main control board or wiring. Contact TID before replacing main control board. • Refer to Service Manual for additional information. yes Check at Inverter Board on Compressor (BLK and RED wires) • • → yes Is Inverter Board receiving 10-15 VAC and 1-5 VDC from Main Control Board? no P-4 WATER VALVE RED Mode 9* 12 Activate/Deactivate (press for up to 10 sec. simultaneously) Variable Capacity Compressor (VCC) Diagnostics (select models) If test 38 fails, diagnose as follows: LT. BLUE NO Interpretation FF Is Inverter Board receiving 115 VAC from power supply? RED HOLD SWITCH ICE MAKER BLK THERMAL CUT-OUT LT. BLUE ICE MAKER BRN BLK P-3 SPECIAL MODES Display FZ CONDENSER FAN MOTOR Thermostat Passing result -- ERROR CODES 115 vac (127 vac max) To activate test: -- Display Electrical Press FF UP for up to 10 sec. Diagnostic Mode will automatically deactivate after 5 min. of inactivity. Note: Silence alarm. First Screen DEFROST SPECIFICATIONS 27’ & 28’ SD, 22’ CD Deactivate: • Tests marked with “*” may not be applicable to this unit and will not be displayed in System Diagnostic Mode. • Tests displayed in diagnostic mode but not described below are for internal purposes only; advance through. • View UI display for “on,” “off,” “CL,” “OP,” “SH,” “LO,” “HI” or numerical results of tests. • Listen for operating sounds; feel for heat or air flow as appropriate to determine results of tests. BOTTOM FREEZER - R134a 115 vac (127 vac max) Thermal Cutout Press FZ UP and FZ DOWN for up to 10 sec. simultaneously. Press FF UP to advance through tests. -- .4 to .8 Amps (running) FREEZER ICE MAKER - AUTOMATIC DEFROST 120 to 135 psig (827 to 931 kPa) 30 to 50 SYSTEM DIAGNOSTIC MODE Activate: Is resistance across all winding pairs equal? no Check voltage supply. Check and repair power cord harness wiring and connections. Remove inverter box from the compressor and check resistance across compressor winding pairs as shown. Check at Main Control Board (BLK/WHT and RED/BLK wires) Is Main Control Board sending 10-15 VAC and 1-5 VDC to Inverter Board? yes P-2 Identify and repair damaged wires or poor connections between Main Control Board and Inverter Board. yes Check connections from Inverter Board to Compressor Are connections from Inverter Board to Compressor intact? no Replace Compressor and Inverter Board. → → no no Identify and repair damaged wires or poor connections between Inverter Board and Compressor. yes Replace Main Control Board. VCC Resistance Check Check resistance between terminals 1 and 2, 2 and 3, 3 and 1. If all resistances are equal, compressor is operative. Replace Inverter Board IMPORTANT SAFETY NOTE The information provided herein is designed to assist qualified repair personnel only. Untrained persons should not attempt to make repairs due to the possibility of electrical shock. Disconnect power cord before servicing this appliance. IMPORTANT CAUTION All electrical parts and wiring must be shielded from torch flame. DO NOT allow torch to touch insulation; it will char at 200°F and flash ignite (burn) at 500°F. Excessive heat will distort the plastic liner. Water Fill Adjustment If any green grounding wires are removed during servicing, they must be returned to their original position and properly secured. Motor Gear TU (Where Applicable) Test Cycling: Remove cover by inserting screwdriver in notch at bottom and prying cover from housing. Use screwdriver to rotate motor gear counterclockwise until holding switch circuit is completed. All components of ice maker should function to complete the cycle. Water Fill Volume: The water fill adjustment screw will change the fill time. One full turn is equal to 20cc (.68 oz.). The correct fill is 102 to 130cc (3.4 to 4.3 oz.). When a water valve is replaced, the fill volume must be checked. R N FREEZER ICE MAKER INFORMATION Mounting Plate Screws Mounting Plate Screw Timing Gear PTD MODELS ONLY PTD ERROR CODES: PTD MODELS ONLY PTD USER INTERFACE BOARD 1 2 J2 3 4 RED/BLACK PINK/WHITE WHITE/PINK PIN 1 PIN 2 PIN 3 PIN 4 PIN 5 PIN 6 PIN 7 PIN 8 THERMISTOR T1 (PTD DRAWER) TO THE TWO LEDS IN THE PTD COVER BLACK/WHITE GRY ORN CONNECTION TO PTD COVER PTD MODELS ONLY BLACK RED/YELLOW BROWN/YELLOW BLACK/YELLOW WHITE/YELLOW WHITE WHITE TO LED POWER BOARD (J2) 1 J8 2 1 2 J6 3 4 PTD MAIN PCBA 1 2 J2 3 4 1 2 J11 3 4 PTD DRAWER HEATER PTD DRAWER HEATER THERM. LT BLUE 3 J3 2 LT BLUE 1 1 2 3 4 J7 5 6 7 1 2 3 4 2X - OPEN NTC, WHERE THE "X" IS: 1 FOR THE PTD DRAWER NTC 2 FOR PTD FREEZER AIR NTC 3X - SHORTED NTC, WHERE THE "X" IS: 1 FOR THE PTD DRAWER NTC 2 FOR PTD FREEZER AIR NTC PTD HEATER GROUND BLK/PNK GRN/YEL YEL/BLK LT. BLU POWER CORD CE - LOSS OF COMMUNICATION BETWEEN UI AND MAIN PCB HI F - UCL OVER TEMP TIME OUT EXCEEDED PTD MODELS ONLY BASE PLATE GROUND + J2-7 Z1-1 - Z1-3 Z2-1 DC SIDE CAB. GROUND +12V DC LINE PIN 8 RL2 RL8 +5V DC LT.BLU/BLK BLK/PNK FLIP MULLION COVER RIGHT HINGE GROUND J1-1 NEUTRAL FF LEDS MC1 LT. BLU LT. BLU LT.BLU/BLK PIN 8 MB1 LH1 RH2 RED COMPRESSOR CONTROL SIGNAL RED/BLK 1 BLK BLK/WHT 2 YEL/BLK LT. BLU AT1 RED/YEL PIN 6 RED/YEL BACK VIEW BRN/YEL PIN 5 BRN/YEL BLK/YEL WHT/YEL BLK/YEL PIN 3 WHT/YEL PIN 2 MB1 YEL/PNK FREEZER DOOR SWITCH (DOOR OPEN) PIN 4 YEL/PNK BLK/ORN BLK PIN 5 YEL/PNK YEL/PNK MC1 NEUTRAL +12V DC U2 (SSR1) GND TO PERFECT TEMP DRAWER HOUSING 11 12 1 J2 6 J3 6 YEL/BLK YEL/RED 2 1 2 3 4 J1 RED TYPICAL LED CONNECTOR CONDENSER FAN +12V DC YEL NEUTRAL OUT1A OUT1B RL6 1 J2 5 2 OUT2A BLK LT. BLU BRN BLK PIN 2 BLK/ORN OUT2B 12 J5 8 +5V DC FREEZER DOOR SWITCH (DOOR OPEN) Z1-1 ZONE 1 LEFT LEDS 4 FREEZER ICE MAKER (SEE FZ ICE MAKER DIAGRAM) ERF2500++ISO REFRIGERATOR CONTROL YEL/PNK THERMAL CUT-OUT FREEZER EVAPORATOR HEATER 3 1 LED - - - BLK/PNK 2 BLK/WHT 1 Z2-2 + LED + - BLK/WHT 2 WHT/PUR 1 Z2-1 BOARD VIEW 2 4 2 4 1 LED POWER BOARD 9 7 9 7 3 1 2 2 1 1 RL3 RL6 1 1 1 2 1 Z4-2 + LED Z4-3 LED - + 2 WHT/GRN 1 BLK/BRN J4 LED LIGHTS RL8 2 2 ZONE 4 FF DOORS AND FRONT OF FREEZER + J8 AMBIENT TEMP SENSOR RL9 J3 Z4-1 ONLY ON MODELS WITH PTD - - 12 RL5 1 RH2 RH1 11 J6 J2 1 1 MC1 3 LATCH CATCH - 1 7 1 3 LED 7 1 3 1 + LED RL2 1 AT1 ZONE 3 PTD LEDS BLK/ORN 1 BLK/BRN 2 3 9 RL1 Z3-1 + - 9 1 4 WHT/RED 1 BLK/ORN 2 3 J11 BLK/GRY ORN GRY 2 BLK/GRY 1 Z3-2 J10 GRY 2 ORN 1 2 1 GRY 7 ORN 8 2 4 1 3 ZONE 2 RIGHT LEDS LED + LED - 2 WHT/BRN 1 BLK/PUR Z1-3 J1 Z2-4 BLK/GRN 2 BLK/PNK 1 Z2-3 Z1-2 BEHIND FRONT LEFT ROLLER J9 MB2 + + 2 BLK/PUR 1 BLK/BLU COIL COVER GROUND 5 RH2 LED GRN/YEL +5V DC LH1 J2 YEL/BLU 2 BOARD-MOUNTED AMBIENT THERMISTOR 5 5 1 CATCH YEL/PNK MB2 6 2 LATCH PIN 3 PIN 4 7 3 LH1 YEL/BLU PIN 1 8 4 1 FREEZER ICEMAKER WATER VALVE FRONT INSIDE VIEW MB1 LED POWER J2 SUPPLY LT. BLU MAIN INLET WATER VALVE 5 6 J5 3 4 MB2 J1-1 LED LIGHTS LT. BLU LT. BLU 1 J8 2 AT1 & MB1 J1-4 J1-3 +12V DC LINE 12V DC DAMPER MOTOR 1 2 3 4 - BRN/WHT J2-1 J2-4 NEUTRAL LED PIN 3 1 - FREEZER POWER (120V AC) FRESH FOOD POWER (120V AC) MULLION HEATER 5 PIN 1 2 PIN 1 5 1 RED/WHT 3 5 YEL/WHT PIN 2 4 Z4-3 2 PIN 2 RH1 J2-2 PIN 6 BLK/PNK GRN/YEL 5 6 7 8 J4 9 GRN/YEL + - BLK/ORN 1 BLK/BRN 2 PIN 1 GRY/BLK J1-3 PIN 3 FREEZER LEDS BLK/GRN 2 WHT/BLK 1 1 GRY/BLK 7 J3 2 4 YEL/BLK J1-4 PIN 2 J2-6 Z4-2 - MB1 PIN 7 YEL/RED - + J2-3 Z4-1 RIGHT DOOR FLANGE LED AT1 PIN 4 RL4 +5V DC MC1 J2 3 J2-5 + 2 RL5 LED POWER BOARD GRN/YEL WHT/BRN 8 WHT/BLU 7 WHT/BLK 6 WHT/PUR 5 WHT/GRN 4 WHT/RED 3 2 GRY 1 ORN FRESH FOOD SENSOR GRY/WHT 1 +5V DC BASE PLATE GROUND BLK BLK/BLU 2 WHT/BLU 1 FREEZER SENSOR 2 GRY/WHT Z3-2 + GRY/YEL 1 7 8 9 J6 10 11 12 12 VDC GRN/YEL GRN/YEL WHT/RED BLK/ORN 1 GRY/YEL 2 1 J1 2 3 Z3-1 1 FREEZER EVAPORATOR SENSOR EVAPORATOR FAN (DC) RH1 NEUTRAL +5V DC LT. BLU Z2-4 1 RED VARIABLE SPEED COMPRESSOR/ INV. CONTROL SIGNAL RED/BLK BLK/WHT LEFT DOOR LH1 INLINE CONNECTOR ABBREVIATION KEY ABBR. EXPLANATION AT1 9 PIN CONNECTION AT AIR TOWER 5 PIN CONNECTION AT THE LEFT LH1 DOOR UPPER HINGE 9 PIN CONNECTION IN THE MAIN MB1 BOARD HOUSING BEHIND THE TOE GRILLE 4 PIN CONNECTION IN THE MAIN MB2 BOARD HOUSING BEHIND THE TOE GRILLE 9 PIN CONNECTION IN THE MC1 MACHINE COMPARTMENT TO THE LEFT OF THE COMPRESSOR 2 PIN CONNECTION WITH THICKER RH1 WIRES AT THE RIGHT DOOR UPPER HINGE 2 PIN CONNECTION WITH SMALL RH2 WIRES AT THE RIGHT DOOR UPPER HINGE COMM. + Z2-3 LT. BLU GND J2-8 Z2-2 BLK BLK PIN 1 J2 PIN 3 PIN 4 PIN 5 AC SIDE POWER LT. BLU PIN 5 USER INTERFACE 3 2 1 WHT 1 2 J9 3 4 COMPRESSOR GROUND PIN 4 BLK LED POWER PCBA Z1-2 LO F - LCL UNDER TEMP TIME OUT EXCEEDED RIGHT DOOR 4 3 PTD DAMPER 2 1 LED FLEX CABLE TO KEYPAD PTD FAN J3 9X - SHORTED KEY/BUTTON, WHERE THE "X" IS: 1 FOR "ON/OFF" 2 FOR "+" 3 FOR "C/F" 4 FOR "-" 5 FOR "LOCK" 6 FOR "V" DOWN ARROW KEY 7 FOR "^" UP ARROW KEY RIBBED (NEUTRAL) PTD USER INTERFACE KEYPAD ASSEMBLY RED NON-RIBBED (LINE) PTD COVER 1 1 J7 U2 RL4 RL7 J5 1 Wire Diagram A01536601