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SERVICE MANUAL Mini-Split Air Conditioner YEHJZH009/12BAMTAFX Read this manual before installation and operation Make sure that it is well kept for later reference MUHJZCAMS-12708 6HUYLFH0DQXDO 7DEOHRI&RQWHQWV 3DUWĉ 7HFKQLFDO,QIRUPDWLRQ 6XPPDU\ 6SHFL¿FDWLRQV 6SHFL¿FDWLRQ6KHHW 2SHUDWLRQ&KDUDFWHULVWLF&XUYH &DSDFLW\9DULDWLRQ5DWLR$FFRUGLQJWR7HPSHUDWXUH &RROLQJDQG+HDWLQJ'DWD6KHHWLQ5DWHG)UHTXHQF\ 1RLVH&XUYH 2XWOLQH'LPHQVLRQ'LDJUDP ,QGRRU8QLW 2XWGRRU8QLW 5HIULJHUDQW6\VWHP'LDJUDP (OHFWULFDO3DUW :LULQJ'LDJUDP 3&%3ULQWHG'LDJUDP )XQFWLRQDQG&RQWURO 5HPRWH&RQWUROOHU,QWURGXFWLRQ %ULHI'HVFULSWLRQRI0RGHVDQG)XQFWLRQV 3DUWĊ ,QVWDOODWLRQDQG0DLQWHQDQFH 1RWHVIRU,QVWDOODWLRQDQG0DLQWHQDQFH ,QVWDOODWLRQ ,QVWDOODWLRQ'LPHQVLRQ'LDJUDP ,QVWDOODWLRQ3DUWVFKHFNLQJ 6HOHFWLRQRI,QVWDOODWLRQ/RFDWLRQ 5HTXLUHPHQWV)RUHOHFWULF&RQQHFWLRQ ,QVWDOODWLRQRI,QGRRU8QLW 6HUYLFH0DQXDO ,QVWDOODWLRQRI2XWGRRU8QLW 9DFXXP3XPSLQJDQG/HDN'HWHFWLRQ &KHFNDIWHU,QVWDOODWLRQDQG7HVW2SHUDWLRQ 0DLQWHQDQFH (UURU&RGH/LVW 7URXEOHVKRRWLQJIRU0DLQ0DOIXQFWLRQ 7URXEOHVKRRWLQJIRU1RUPDO0DOIXQFWLRQ ([SORGHG9LHZDQG3DUWV¶/LVW ,QGRRU8QLW 2XWGRRU8QLW 5HPRYDO3URFHGXUH 5HPRYDO3URFHGXUHRI,QGRRU8QLW 5HPRYDO3URFHGXUHRI2XWGRRU8QLW $SSHQGL[ $SSHQGL[5HIHUHQFH6KHHWRI&HOVLXVDQG)DKUHQKHLW $SSHQGL[&RQ¿JXUDWLRQRI&RQQHFWLRQ3LSH $SSHQGL[3LSH([SDQGLQJ0HWKRG $SSHQGL[/LVWRI5HVLVWDQFHIRU$PELHQW7HPSHUDWXUH6HQVRU 6HUYLFH0DQXDO 3DUWĉ 7HFKQLFDO,QIRUPDWLRQ 6XPPDU\ ,QGRRU8QLW YEHJXH009BAMT-FX YEHJXH012BAMT-FX 7HFKQLFDO,QIRUPDWLRQ 6HUYLFH0DQXDO 2XWGRRU8QLW YEHJYH009BAMTA-X YEHJYH012BAMTA-X 5HPRWH&RQWUROOHU 7HFKQLFDO,QIRUPDWLRQ YEHJZH009BAMTAFX YEHJZH012BAMTAFX YEHJXH009BAMT-FX YEHJXH012BAMT-FX YEHJYH009BAMTA-X YEHJYH012BAMTA-X 6HUYLFH0DQXDO 2SHUDWLRQ&KDUDFWHULVWLF&XUYH Cooling Heating 8 10 9 7 8 6 12K 12K 7 5 Current(A) Current(A) 6 09K 5 4 3 Condition Indoor:DB 27 WB19 Indoor air flow: Turbo Pipe length:5m Voltage:230V 2 09K 4 3 Condition Indoor:DB 20 Indoor air flow:Turbo Pipe length:5m Voltage:230V 2 1 1 0 0 0 20 40 60 80 100 0 120 20 Compressor Speed(rps) 40 60 80 100 120 Compressor Speed(rps) &DSDFLW\9DULDWLRQ5DWLR$FFRUGLQJWR7HPSHUDWXUH Heating 110 120 100 100 90 80 Capacity ratio(%) Capacity ratio(%) Cooling 80 70 Condition Indoor:DB27℃ WB19℃ Indoor air flow: Turbo Pipe length:5m 60 50 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Outdoor temp. (°C) 7HFKQLFDO,QIRUPDWLRQ 60 40 Condition Indoor:DB20℃ Indoor air flow: Turbo Pipe length:5m 20 0 -7 -5 0 5 10 Outdoor temp. (°C) 6HUYLFH0DQXDO &RROLQJDQG+HDWLQJ'DWD6KHHWLQ5DWHG)UHTXHQF\ &RROLQJ 5DWHGFRROLQJ FRQGLWLRQ&'%:% ,QGRRU 0RGHO 3UHVVXUHRIJDVSLSH ,QOHWDQGRXWOHWSLSH FRQQHFWLQJLQGRRUDQG WHPSHUDWXUHRIKHDW RXWGRRUXQLW H[FKDQJHU 2XWGRRU 303D . . a 7& WR WR 7& WR WR )DQVSHHGRI )DQVSHHGRI LQGRRUXQLW RXWGRRUXQLW 785%2 +LJK &RPSUHVVRU UHYROXWLRQUSV +HDWLQJ 5DWHGFRROLQJ FRQGLWLRQ&'%:% ,QGRRU 2XWGRRU 0RGHO 3UHVVXUHRIJDVSLSH ,QOHWDQGRXWOHWSLSH FRQQHFWLQJLQGRRUDQG WHPSHUDWXUHRIKHDW RXWGRRUXQLW 303D H[FKDQJHU 7& 7& . . a WR WR WR WR )DQVSHHGRI )DQVSHHGRI LQGRRUXQLW RXWGRRUXQLW 785%2 +LJK &RPSUHVVRU UHYROXWLRQUSV ,QVWUXFWLRQ 7,QOHWDQGRXWOHWSLSHWHPSHUDWXUHRIHYDSRUDWRU 7,QOHWDQGRXWOHWSLSHWHPSHUDWXUHRIFRQGHQVHU 33UHVVXUHDWWKHVLGHRIELJYDOYH &RQQHFWLRQSLSHOHQJWKP 1RLVH&XUYH Indoor side noise when blowing Outdoor side noise when Compressor speed changed 45 55 Noise/dB(A) Noise/dB(A) 40 35 30 25 Supper High High Middle Indoor fan motor rotating speed Low 09K 12K 50 45 20 30 40 50 60 70 75 Compressor Speed(rps) 7HFKQLFDO,QIRUPDWLRQ 6HUYLFH0DQXDO 2XWOLQH'LPHQVLRQ'LDJUDP ,QGRRU8QLW Φ55 Φ55 45 45 143 80 2XWGRRU8QLW YEHJYH009/12BAMTA-X 714 320 776 286 540 257 510 7HFKQLFDO,QIRUPDWLRQ 8QLWPP 6HUYLFH0DQXDO 5HIULJHUDQW6\VWHP'LDJUDP &RROLQJDQGKHDWLQJPRGHO Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Discharge Heat exchanger (evaporator) Suction Accumlator Heat exchanger (condenser) Liquid pipe side Valve Strainer Electron expansion valve Strainer COOLING HEATING &RQQHFWLRQSLSHVSHFL¿FDWLRQ /LTXLGSLSHPP *DVSLSHPP 7HFKQLFDO,QIRUPDWLRQ 6HUYLFH0DQXDO (OHFWULFDO3DUW :LULQJ'LDJUDP Ɣ,QVWUXFWLRQ 6\PERO 6\PERO&RORU 6\PERO 6\PERO&RORU 6\PERO 1DPH :+ :KLWH *1 *UHHQ &$3 -XPSHUFDS <( <HOORZ %1 %URZQ &203 &RPSUHVVRU 5' 5HG %8 %OXH <HOORZ*UHHQ %. %ODFN 9LROHW 2* 2UDQJH <(*1 97 *URXQGLQJZLUH 1RWH-XPSHUFDSLVXVHGWRGHWHUPLQHIDQVSHHGDQGWKHVZLQJDQJOHRIKRUL]RQWDOORYHUIRUWKLVPRGHO Ɣ,QGRRU8QLW TUBE TEM.SENSOR θ θ RT1 RT2 DISPLAY L1 AP1 CN1 CN2 L1 N ROOM DISP-1 DISP-2 TUBE COM-OUT POWER BN YEGN BU XT1 W1BU N(1) W2BK 2 W3BN CAP AP2 AC-L L-OUT K4 JUMP 3 W4YEGN L N BU BK BN YEGN OUTDOOR UNIT ROOM TEM.SENSOR EVAPORATOR PE PGF PG SWING-UD HEALTH-LHEALTH-N M M RD BU COOL PLASMA GENERATOR YEGN FAN MOTOR SWING MOTOR(U.D) PE 7HFKQLFDO,QIRUPDWLRQ 6HUYLFH0DQXDO Ɣ2XWGRRU8QLW YEHJYH009BAMTA-X TUBE OUTROOM EXHAUST TEM.SENSOR TEM.SENSOR TEM.SENSOR RT1 RT2 RT3 4YV θ θ θ YEGN PE I N D O O R U N I T L1 BU N(1) BN YEGN CN2 CN1 CN3 AP1 XT BU BK PE BK 2 3 L1 BN L EKV L3 BU BN LX1-1 LX1-2 CN1 AC-L2 4V AP2 N COM-OUT N1 BU AC-L AC-L1 BN BN AC-L3 AC-N1 AC-N2 BU AC-N AC-L OFAN OVC-COMP U V W PE PE L4 BU YE RD MID.ISOLATION SHEET ELECTRIC BOX YEGN M L2 L2 L2 RD SAT PE NOTE: FAN Motor ground only BU YE RD YEGN applies to the U V iron shell motor. YEGN W COMP. PE E COMP YEHJYH012BAMTA-X L YEGN L3 BU BN LX1-1 LX1-2 4YV PE PE I N D O O R U N I T XT BU N(1) BK 2 BN 3 YEGN PE AP1 L1 L1 L4 BU L4 BK L4 BN CN1 4V CN1 CN2 AC-L2 CN3 AC-L3 AP2 N COM-OUT N1 BU AC-L TUBE OUTROOM EXHAUST EKV TEM.SENSOR TEM.SENSOR TEM.SENSOR RT1 RT2 RT3 θ θ θ AC-L1 BN BN AC-N1 AC-N2 BU AC-N AC-L OFAN OVC-COMP U V W MID.ISOLATION SHEET ELECTRIC BOX PE BU YE RD SAT PE L2 YEGN RD M L2 L2 NOTE: FAN Motor ground only BU YE RD applies to the YEGN V U iron shell motor. YEGN W COMP. PE E COMP 7HFKQLFDO,QIRUPDWLRQ 6HUYLFH0DQXDO 3&%3ULQWHG'LDJUDP ,QGRRU8QLW Top view Solid-state relay Port of neutral wire Auto button Feedback of indoor fan Live wire of health function Port of indoor fan Port of motor for vertical swing Port of motor for horizontal swing Protective tube Jumper cap Buzzer Port of indoor ambient temp sensor Port of indoor pipe temp sensor Power of switch Port of display High-frequency transformer Communication port Main chip Bottom view 7HFKQLFDO,QIRUPDWLRQ 6HUYLFH0DQXDO 2XWGRRU8QLW Ɣ7RSYLHZ inductance pin1 inductance pin2 fan neilsbed four-way valve compressor electric heater chassis electric heater 10-core communication cable compressor temp. sensor overload protection electric expansion valve Ɣ%RWWRPYLHZ 7HFKQLFDO,QIRUPDWLRQ 6HUYLFH0DQXDO )XQFWLRQDQG&RQWURO 5HPRWH&RQWUROOHU,QWURGXFWLRQ %XWWRQVRQ5HPRWH&RQWUROOHU 1 ON/OFF Button 2 MODE Button 3 +/- Button 4 FAN Button 5 Button 6 CLOCK Button 7 TIMER ON/TIMER-OFF Button 8 X-FAN Button 2 1 3 4 5 6 8 7 9 TEMP Button 10 9 10 TURBO Button 12 11 11 LIGHT Button 12 SLEEP Button ,QWURGXFWLRQIRU,FRQVRQ'LVSOD\6FUHHQ Set fan speed Operation mode Send signal Auto mode Cool mode X-fan mode Dry mode Fan mode Heat mode Set temperature Turbo mode Set time Clock TIMER ON/TIMER OFF Sleep mode Child lock Temp. display type Light :Set temp. :Indoor ambient temp. :Outdoor ambient temp. Up&down swing ,QWURGXFWLRQIRU%XWWRQVRQ5HPRWH&RQWUROOHU 1RWH$IWHUSXWWLQJWKURXJKWKHSRZHUWKHDLUFRQGLWLRQHUZLOOJLYHRXWDVRXQG2SHUDWLRQLQGLFWRU \RXFDQRSHUDWHWKHDLUFRQGLWLRQHUE\XVLQJUHPRWHFRQWUROOHU LV21UHGLQGLFDWRU$IWHUWKDW 212))%XWWRQ 3UHVVWKLVEXWWRQFDQWXUQRQRUWXUQRIIWKHDLUFRQGLWLRQHU$IWHUWXUQLQJRQWKHDLUFRQGLWLRQHURSHUDWLRQLQGLFDWRU XQLW¶VGLVSOD\LV21JUHHQLQGLFDWRU7KHFRORXULVGLIIHUHQWIRUGLIIHUHQWPRGHOVDQGLQGRRUXQLWZLOOJLYHRXWDVRXQG RQLQGRRU 02'(%XWWRQ 3UHVVWKLVEXWWRQWRVHOHFW\RXUUHTXLUHGRSHUDWLRQPRGH AUTO COOL DRY 7HFKQLFDO,QIRUPDWLRQ FAN HEAT 6HUYLFH0DQXDO Ɣ:KHQVHOHFWLQJDXWRPRGHDLUFRQGLWLRQHUZLOORSHUDWHDXWRPDWLFDOO\DFFRUGLQJWRH[IDFWRU\VHWWLQJ6HWWHPSHUDWXUHFDQ¶WEHDGMXVWHG DQGZLOOQRWEHGLVSOD\HGDVZHOO3UHVV³)$1´EXWWRQFDQDGMXVWIDQVSHHG3UHVV EXWWRQFDQDGMXVWIDQEORZLQJDQJOH Ɣ:KHQVHOHFWLQJFRROPRGHDLUFRQGLWLRQHUZLOORSHUDWHXQGHUFRROPRGH&RROLQGLFDWRU RQLQGRRUXQLWLV213UHVV³´RU³³ EXWWRQWRDGMXVWVHWWHPSHUDWXUH3UHVV³)$1´EXWWRQWRDGMXVWIDQVSHHG3UHVV EXWWRQWRDGMXVWIDQEORZLQJDQJOH Ɣ:KHQVHOHFWLQJGU\PRGHWKHDLUFRQGLWLRQHURSHUDWHVDWORZVSHHGXQGHUGU\PRGH'U\LQGLFDWRU RQLQGRRUXQLWLV218QGHUGU\ PRGHIDQVSHHGFDQ¶WEHDGMXVWHG3UHVV EXWWRQWRDGMXVWIDQEORZLQJDQJOH Ɣ:KHQVHOHFWLQJIDQPRGHWKHDLUFRQGLWLRQHUZLOORQO\EORZIDQQRFRROLQJDQGQRKHDWLQJ$OOPRGHLQGLFDWRUVRQLQGRRUGLVSOD\DUH RIIˈ3UHVV³)$1´EXWWRQWRDGMXVWIDQVSHHG3UHVV EXWWRQWRDGMXVWIDQEORZLQJDQJOH Ɣ:KHQVHOHFWLQJKHDWLQJPRGHWKHDLUFRQGLWLRQHURSHUDWHVXQGHUKHDWPRGH+HDWLQGLFDWRU RQLQGRRUXQLWLV213UHVV³´RU³³ EXWWRQWRDGMXVWVHWWHPSHUDWXUH3UHVV³)$1´EXWWRQWRDGMXVWIDQVSHHG3UHVV EXWWRQWRDGMXVWIDQEORZLQJDQJOH&RROLQJRQO\XQLW ZRQ¶WUHFHLYHKHDWLQJPRGHVLJQDO,IVHWWLQJKHDWPRGHZLWKUHPRWH FRQWUROOHUSUHVV212))EXWWRQFDQ¶WVWDUWXSWKHXQLW 1RWH Ɣ)RUSUHYHQWLQJFROGDLUDIWHUVWDUWLQJXSKHDWLQJPRGHLQGRRUXQLWZLOOGHOD\aPLQXWHVWREORZDLUDFWXDOGHOD\WLPHLVGHSHQGRQ LQGRRUDPELHQWWHPSHUDWXUH Ɣ6HWWHPSHUDWXUHUDQJHIURPUHPRWHFRQWUROOHUać )DQVSHHGDXWRORZVSHHGPHGLXPVSHHGKLJKVSHHG ³´RU³´%XWWRQ Ɣ3UHVV³´RU³³EXWWRQRQFHLQFUHDVHRUGHFUHDVHVHWWHPSHUDWXUH ć +ROGLQJRUEXWWRQVODWHUVHWWHPSHUDWXUHRQUHPRWH FRQWUROOHUZLOOFKDQJHTXLFNO\2QUHOHDVLQJEXWWRQDIWHUVHWWLQJLV¿QLVKHGWHPSHUDWXUHLQGLFDWRURQLQGRRUXQLWZLOOFKDQJHDFFRUGLQJO\ 7HPSHUDWXUHFDQ¶WEHDGMXVWHGXQGHUDXWRPRGH Ɣ :KHQ VHWWLQJ7,0(5 217,0(5 2)) RU &/2&. SUHVV ³´ RU ³³ EXWWRQ WR DGMXVW WLPH5HIHU WR &/2&.7,0(5 217,0(5 2)) EXWWRQV )$1%XWWRQ 3UHVVLQJWKLVEXWWRQFDQVHWIDQVSHHGFLUFXODUO\DVDXWR$872ORZ PHGLXP KLJK Auto 1RWH Ɣ8QGHU$872VSHHGDLUFRQGLWLRQHUZLOOVHOHFWSURSHUIDQVSHHGDXWRPDWLFDOO\DFFRUGLQJWRH[IDFWRU\VHWWLQJ Ɣ)DQVSHHGXQGHUGU\PRGHLVORZVSHHG %XWWRQ 3UHVVWKLVEXWWRQFDQVHOHFWXSGRZQVZLQJDQJOH)DQEORZDQJOHFDQEHVHOHFWHGFLUFXODUO\DVEHORZ no display (horizontal louvers stops at current position) Ɣ :KHQ VHOHFWLQJ DLU FRQGLWLRQHU LV EORZLQJ IDQ DXWRPDWLFDOO\ +RUL]RQWDO ORXYHU ZLOO DXWRPDWLFDOO\ VZLQJ XS GRZQ DW PD[LPXPDQJOH Ɣ :KHQ VHOHFWLQJ ǃ ǃ ǃ ǃ DLU FRQGLWLRQHU LV EORZLQJ IDQ DW IL[HG SRVLWLRQ +RUL]RQWDO ORXYHU ZLOO VWRS DW WKH IL[HG SRVLWLRQ Ɣ:KHQVHOHFWLQJ ǃ ǃ ´DLUFRQGLWLRQHULVEORZLQJIDQDW¿[HGDQJOH+RUL]RQWDOORXYHUZLOOVHQGDLUDWWKH¿[HGDQJOH Ɣ+ROG EXWWRQDERYHVWRVHW\RXUUHTXLUHGVZLQJDQJOH:KHQUHDFKLQJ\RXUUHTXLUHGDQJOHUHOHDVHWKHEXWWRQ 1RWH ǃ ǃ PD\QRWEHDYDLODEOH:KHQDLUFRQGLWLRQHUUHFHLYHVWKLVVLJQDOWKHDLUFRQGLWLRQHUZLOOEORZIDQDXWRPDWLFDOO\ &/2&.%XWWRQ 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Temperature Parameters Indoor preset temperature (Tpreset) Indoor ambient temperature (T amb.) 2. Basic Functions Once energized, in no case should the compressor be restarted within less than 3 minutes. In the situation that memory function is available, for the first energization, if the compressor is at stop before de-energization, the compressor will be started without a 3-minute lag; if the compressor is in operation before de-energization, the compressor will be started with a 3-minute lag; and once started, the compressor will not be stopped within 6 minutes regardless of changes in room temperature; (1)COOL mode The condition and process of cooling If Tamb. ≥Tpreset COOL mode will act, the compressor and outdoor fan will run, and the indoor fan will run at the set speed. If Tamb. ≤Tpreset-2 , the compressor will stop, the outdoor fan will delay 30 seconds to stop, and the indoor fan will run at the set speed. If Tpreset-2 ≤Tamb ≤Tpreset , the unit will keep running in the previous mode. In this mode, the reversal valve will not be powered on and the temperature setting range is 16 ~30 . Start cooling Tamb. Tpreset Original operating status Tpreset –2 ˚C ≥ 6 min. ≥ 3 min. ≥ 6 min. Stop cooling Compressor Outdoor fan Setting fan speed Indoor fan Run Protection function Overcurrent protection Stop If total current is high, the compressor will run in limited frequency. If total current is too high, the compressor will stop, the outdoor fan will delay 30 seconds to stop, indoor unit will display E5 and outdoor yellow light will blink 5 times. Antifreezing protection When the antifreezing protection is detected, the compressor will stop, the outdoor fan will stop after 30 seconds, and the indoor fan and swing motor will keep running in the original mode. When antifreezing protection is eliminated and the compressor has stopped for 3 minutes, the compressor will resume running in the original mode. During antifreeze protection min Compressor Outdoor fan Preset speed Indoor fan Run Stop (2) Dehumidifying Mode Working conditions and process of dehumidifying If T amb. T preset, the unit will enter cooling and dehumidifying mode, in which case the compressor and the outdoor fan will operate and the indoor fan will run at low speed. If T preset -2 T amb. T preset, the compressor remains at its original operation state. If T amb.< T preset -2 , the compressor will stop, the outdoor fan will stop with a time lag of 30s, and the indoor fan will operate at low speed. 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Ɣ3UHVV02'(EXWWRQWRVHOHFW$872&22/'5<)$1DQG +($7WRFKHFNZKHWKHUWKHRSHUDWLRQLVQRUPDORUQRW Ɣ,IWKHDPELHQWWHPSHUDWXUHLVORZHUWKDQć WKHDLU FRQGLWLRQHUFDQ¶WVWDUWFRROLQJ Close Open /HDNDJHGHWHFWLRQ :LWKOHDNDJHGHWHFWRU &KHFNLIWKHUHLVOHDNDJHZLWKOHDNDJHGHWHFWRU :LWKVRDSZDWHU ,IOHDNDJHGHWHFWRULVQRWDYDLODEOHSOHDVHXVHVRDSZDWHUIRU OHDNDJHGHWHFWLRQ$SSO\VRDSZDWHUDWWKHVXVSHFWHGSRVLWLRQ DQG NHHS WKH VRDS ZDWHU IRU PRUH WKDQ PLQ ,I WKHUH DUH DLU EXEEOHVFRPLQJRXWRIWKLVSRVLWLRQWKHUH VDOHDNDJH ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO 0DLQWHQDQFH (UURU&RGH/LVW Display Method of Indoor Unit Indicator Display (during NO. Malfunction Name Dual-8 blinking, ON 0.5s and OFF Code 0.5s) Display 1 2 3 4 Antifreezing protection In defect of refrigerant High discharge temperature protection of compressor 5 Overcurrent protection 6 Communication Malfunction 7 High temperature resistant protection 8 EEPROM malfunction 9 Limit/ decrease frequency due to high temperature of module 10 High pressure protection of system Malfunction protection of jumper cap E1 E2 Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking, ON 0.5s and OFF A/C status Possible Causes 0.5s Operation Cool Heating Yellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator During cooling and drying operation, except indoor fan operates, all loads stop operation. During heating operation, the complete unit stops. OFF 3s and blink once OFF 3S and blink twice During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. OFF 1S and blink 3 times OFF 1S and blink 9 times F0 Possible reasons: 1. Refrigerant was superabundant; 2. Poor heat exchange (including and bad radiating environment ); Ambient temperature is too high. 1. Poor air-return in indoor unit; 2. Fan speed is abnormal; 3. Evaporator is dirty. 1.In defect of refrigerant; The Dual-8 Code Display will 2.Indoor evaporator temperature show F0 and the complete unit sensor works abnormally; stops. 3.The unit has been plugged up somewhere. E4 OFF 3S and blink 4 times OFF 1S and blink 7 times During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating operation, all loads stop. Please refer to the malfunction analysis (discharge protection, overload). E5 OFF 3S and blink 5 times OFF 1S and blink 5 times During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating operation, all loads stop. 1. Supply voltage is unstable; 2. Supply voltage is too low and load is too high; 3. Evaporator is dirty. E6 OFF 3S and blink 6 times Always ON During cooling operation, compressor stops while indoor fan motor operates. During heating operation, the complete unit stops. Refer to the corresponding malfunction analysis. E8 OFF 3S and blink 8 times OFF 1S and blink 6 times During cooling operation: compressor will stop while indoor fan will operate. During heating operation, the complete unit stops. Refer to the malfunction analysis (overload, high temperature resistant). OFF 3S OFF 1S and blink and blink 15 times 11 times EE OFF 3S OFF 3S and blink and blink 6 times 6 times EU C5 OFF 3S and blink 15 times During cooling and drying operation, compressor will stop Replace outdoor control panel AP1 while indoor fan will operate; During heating operation, the complete unit will stop All loads operate normally, while operation frequency for compressor is decreased Wireless remote receiver and button are effective, but can not dispose the related command Discharging after the complete unit is de-energized for 20mins, check whether the thermal grease on IPM Module of outdoor control the radiator is inserted tightly. If its no use, please replace control panel AP1. 1. No jumper cap insert on mainboard. 2. Incorrect insert of jumper cap. 3. Jumper cap damaged. 4. Abnormal detecting circuit of mainboard. ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO Display Method of Indoor Unit Indicator Display (during NO. Malfunction Name Dual-8 blinking, ON 0.5s and OFF Code 0.5s) Display 11 12 Gathering refrigerant Indoor ambient temperature sensor is open/short circuited Fo F1 Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking, ON 0.5s and OFF 0.5s 13 OFF 3S OFF 3S and blink and blink 1 times 1 times When the outdoor unit receive signal of Gathering refrigerant ,the system will be forced to Nominal cooling mode run under cooling mode for gathering refrigerant OFF 1S and blink 17 times 1. Loosening or bad contact of indoor ambient temp. sensor and During cooling and drying mainboard terminal. operation, indoor unit operates 2. Components in mainboard fell while other loads will stop; down leads short circuit. during heating operation, 3. Indoor ambient temp. sensor the complete unit will stop damaged.(check with sensor operation. resistance value chart) 4. Mainboard damaged. OFF 3S and blink once AC stops operation once reaches the setting temperature. Cooling, drying: internal fan motor stops operation while other loads stop operation; heating: AC stop operation F2 OFF 3S and blink twice F3 OFF 3S and blink 3 times F4 OFF 3S and blink 4 times circuited 14 15 Outdoor ambient temperature sensor is open/short circuited Outdoor condenser temperature sensor is open/short circuited 16 Outdoor discharge temperature sensor is open/short circuited 17 Limit/ decrease frequency due to overload 18 Decrease frequency due to overcurrent Possible Causes Operation Cool Heating Yellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator Indoor evaporator temperature sensor is open/short A/C status OFF 1S and blink 6 times OFF 1S and blink 5 times During cooling and drying operating, compressor stops while indoor fan operates; During heating operation, the complete unit will stop operation During cooling and drying operation, compressor stops while indoor fan will operate; During heating operation, the complete unit will stop operation. 1. Loosening or bad contact of Indoor evaporator temp. sensor and mainboard terminal. 2. Components on the mainboard fall down leads short circuit. 3. Indoor evaporator temp. sensor damaged.(check temp. sensor value chart for testing) 4. Mainboard damaged. Outdoor temperature sensor hasnt been connected well or is damaged. Please check it by referring to the resistance table for temperature sensor) Outdoor temperature sensor hasnt been connected well or is damaged. Please check it by referring to the resistance table for temperature sensor) F5 OFF 3S and blink 5 times OFF 1S and blink 7 times During cooling and drying operation, compressor will sop after operating for about 3 mins, while indoor fan will operate; During heating operation, the complete unit will stop after operating for about 3 mins. F6 OFF 3S and blink for 6 times OFF 1S and blink 3 times All loads operate normally, while operation frequency for compressor is decreased Refer to the malfunction analysis (overload, high temperature resistant) F8 OFF 3S and blink 8 times OFF 1S and blink once All loads operate normally, while operation frequency for compressor is decreased The input supply voltage is too low; System pressure is too high and overload ,QVWDOODWLRQDQG0DLQWHQDQFH 1.Outdoor temperature sensor hasnt been connected well or is damaged. Please check it by referring to the resistance table for temperature sensor) 2.The head of temperature sensor hasnt been inserted into the copper tube 6HUYLFH0DQXDO Display Method of Indoor Unit Indicator Display (during NO. Malfunction Name Dual-8 blinking, ON 0.5s and OFF Code 0.5s) Display Display Method of Outdoor Unit Indicator has 3 kinds of display status and during 19 due to high air F9 OFF 1S and blink twice OFF 3S and blink 9 times discharge 20 21 Limit/ decrease frequency due to antifreezing Voltage for DC bus-bar is too high FH PH Possible Causes Operation Cool Heating Yellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator Decrease frequency A/C status blinking, ON 0.5s and OFF 0.5s OFF 1S and blink 4 times OFF 3S OFF 3S and blink and blink 2 times 2 times OFF 1S and blink 13 times OFF 3S and blink 11 times All loads operate normally, while operation frequency for compressor is decreased All loads operate normally, while operation frequency for compressor is decreased Overload or temperature is too high; Malfunction of electric expansion valve (EKV) Poor air-return in indoor unit or fan speed is too low 1. Measure the voltage of position L and N on wiring board (XT), if the During cooling and drying voltage is higher than 265VAC, turn operation, compressor will stop on the unit after the supply voltage is increased to the normal range. while indoor fan will operate; 2.If the AC input is normal, During heating operation, the measure the voltage of electrolytic complete unit will stop capacitor C on control panel (AP1), if its normal, theres malfunction operation. for the circuit, please replace the control panel (AP1) 1. Measure the voltage of position L and N on wiring board (XT), if the 22 Voltage of DC bus-bar is too low 23 Compressor Min frequence in test state 24 Compressor rated frequence in test state 25 Compressor maximum frequence in test state OFF 3S and blink 21 times PL OFF 1S and blink 12 times voltage is higher than 150VAC, turn on the unit after the supply During cooling and drying voltage is increased to the normal operation, compressor will stop range. while indoor fan will operate; AC input is normal, During heating operation, the 2.If the measure the voltage of electrolytic complete unit will stop capacitor C on control panel (AP1), if its normal, theres malfunction for the circuit, please replace the control panel (AP1) P0 (during blinking, ON 0.25s and OFF 0.25s) (during blinking, ON 0.25s and OFF 0.25s) Showing during min. cooling or min. heating test P1 (during blinking, ON 0.25s and OFF 0.25s) (during blinking, ON 0.25s and OFF 0.25s) Showing during nominal cooling or nominal heating test P2 (during blinking, ON 0.25s and OFF 0.25s) (during blinking, ON 0.25s and OFF 0.25s) Showing during max. cooling or max. heating test ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO Display Method of Indoor Unit Indicator Display (during NO. Malfunction Name Dual-8 blinking, ON 0.5s and OFF Code 0.5s) Display Compressor 26 27 28 intermediate frequence in test state Overcurrent protection of phase current for compressor Charging malfunction of capacitor P3 P5 PU Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking, ON 0.5s and OFF 0.5s 30 of module temperature sensor circuit Module high temperature protection P7 P8 (during blinking, ON 0.25s and OFF 0.25s) (during blinking, ON 0.25s and OFF 0.25s) OFF 3S and blink 15 times OFF 3S and blink 17 times OFF 3S and blink 18 times During cooling and drying operation, compressor will stop Refer to the part three—charging while indoor fan will operate; malfunction analysis of capacitor During heating operation, the complete unit will stop During cooling and drying operation, compressor will stop while indoor fan will operate; Replace outdoor control panel AP1 During heating operation, the complete unit will stop After the complete unit is deenergized for 20mins, check whether the thermal grease on IPM Module of outdoor control panel All loads operate normally, while operation frequency for compressor is decreased Refer to the malfunction analysis (overload, high temperature resistant) During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation. 1. Wiring terminal OVC-COMP is loosened. In normal state, the resistance for this terminal should be less than 1ohm. 2.Refer to the malfunction analysis ( discharge protection, overload) H0 32 Static dedusting protection H2 OFF 3S and blink twice ,QVWDOODWLRQDQG0DLQWHQDQFH Refer to the malfunction analysis (IPM protection, loss of synchronism protection and overcurrent protection of phase current for compressor. During cooling operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop 31 H3 middle heating test OFF 3S and blink 19 times OFF 3S and blink 10 times Overload protection for compressor Showing during middle cooling or During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation. Decrease frequency due to high temperature resistant during heating operation 33 Possible Causes Operation Cool Heating Yellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator Malfunction 29 A/C status OFF 3S OFF 1S and blink and blink 3 times 8 times radiator is inserted tightly. If its no use, please replace control panel AP1. 6HUYLFH0DQXDO Display Method of Indoor Unit Indicator Display (during NO. Malfunction Name Dual-8 blinking, ON 0.5s and OFF Code 0.5s) Display 34 35 36 System is abnormal IPM protection Module temperature Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking, ON 0.5s and OFF A/C status Possible Causes 0.5s Operation Cool Heating Yellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator During cooling and drying operation, compressor will stop OFF 3S OFF 1S and blink and blink 4 times 6 times H4 H5 OFF 3S OFF 1S and blink and blink 5 times 4 times H5 OFF 3S OFF 1S and blink and blink 5 times 10 times is too high while indoor fan will operate; During heating operation, the complete unit will stop Refer to the malfunction analysis (overload, high temperature resistant) operation. During cooling and drying Refer to the malfunction operation, compressor will stop analysis (IPM protection, loss while indoor fan will operate; of synchronism protection and During heating operation, the overcurrent protection of phase complete unit will stop current for compressor. operation. 1. Bad contact of DC motor 37 38 Internal motor (fan motor) do not operate Desynchronizing of H6 OFF 3S and blink 11 times PFC protection 40 Outdoor DC fan motor malfunction 7 times OFF 3S OFF 1S and blink and blink 6 times 14 times HC feedback terminal. 2. Bad contact of DC motor control end. 3. Fan motor is stalling. 4. Motor malfunction. 5. Malfunction of mainboard rev detecting circuit. During cooling and drying Refer to the malfunction operation, compressor will stop analysis (IPM protection, loss while indoor fan will operate; of synchronism protection and During heating operation, the overcurrent protection of phase complete unit will stop current for compressor. operation. During cooling and drying operation, compressor will stop while indoor fan will operate; Refer to the malfunction analysis During heating operation, the complete unit will stop operation. OFF 3S and blink H7 compressor 39 Internal fan motor, external fan motor, compressor and electric heater stop operation,guide louver stops at present location. OFF 1S and blink 14 times DC fan motor malfunction or Outdoor DC fan motor malfunction lead to compressor system blocked or the connector stop operation, loosed L3 OFF 3S and blink 23 times 41 power protection L9 OFF 3S and blink 20 times OFF 1S and blink 9 times compressor stop operation and Outdoor fan motor will stop To protect the electronical 30s latter , 3 minutes latter components when detect high fan motor and compressor will power restart 42 Indoor unit and outdoor unit doesn't match LP OFF 3S and blink 19 times OFF 1S and blink 16 times compressor and Outdoor fan motor can’t work 43 Failure startup LC OFF 3S and blink 11 times Indoor unit and outdoor unit doesn't match During cooling and drying operation, compressor will stop while indoor fan will operate; Refer to the malfunction analysis During heating operation, the complete unit will stop operation. ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO Display Method of Indoor Unit Indicator Display (during NO. Malfunction Name Dual-8 blinking, ON 0.5s and OFF Code 0.5s) Display Display Method of Outdoor Unit Indicator has 3 kinds of display status and during During cooling and drying phase current detection U1 circuit for OFF 3S operation, compressor will stop and blink while indoor fan will operate; 13 times During heating operation, the compressor 45 46 Malfunction of voltage dropping for DC bus-bar Malfunction of complete units current detection Possible Causes Operation Cool Heating Yellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator Malfunction of 44 A/C status blinking, ON 0.5s and OFF 0.5s Replace outdoor control panel AP1 complete unit will stop During cooling and drying operation, compressor will stop while indoor fan will operate; Supply voltage is unstable During heating operation, the complete unit will stop OFF 3S and blink 20 times U3 During cooling and drying operation, the compressor will stop while indoor fan will operate; During heating operating, the complete unit will stop OFF 3S and blink 13 times U5 Theres circuit malfunction on outdoor units control panel AP1, please replace the outdoor units control panel AP1. operation. 47 The four-way valve is If this malfunction occurs OFF 3S and blink 20 times U7 abnormal 48 Zerocrossing malfunction of U9 during heating operation, the complete broken; unit will stop operation. 3.4V is damaged, please replace 4V. During cooling operation, compressor will stop while indoor fan will operate; during heating,the complete unit will stop operation. OFF 3S and blink 18 times outdoor unit 49 Frequency limiting (power) 50 Compressor running 51 The temperature for turning on the unit is reached OFF 1S and blink 8 times 52 Frequency limiting (module temperature) OFF 1S and blink 11 times ,QVWDOODWLRQDQG0DLQWHQDQFH 1.Supply voltage is lower than AC175V; 2.Wiring terminal 4V is loosened or Replace outdoor control panel AP1 OFF 1S and blink 13 times OFF 1S and blink once 6HUYLFH0DQXDO Display Method of Indoor Unit Indicator Display (during NO. Malfunction Name Dual-8 blinking, ON 0.5s and OFF Code 0.5s) Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking, ON Heating Yellow Red Display Operation Cool Indicator Indicator Indicator Indicator Indicator 54 communication Defrosting Possible Causes Green Indicator OFF 0.5S and blink once Normal 53 A/C status 0.5s and OFF 0.5s OFF 3S and blink once (during OFF 1S blinking, and blink ON 10s twice and OFF 0.5s) Defrosting will occur in heating mode. Compressor will operate while indoor fan will stop operation. Its the normal state ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO 7URXEOHVKRRWLQJIRU0DLQ0DOIXQFWLRQ 0DOIXQFWLRQRI7HPSHUDWXUH6HQVRU)) Troubleshooting for F1,F2 malfunction Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? yes Insert the temperature sensor tightly no no Is there short circuit due to trip-over of the parts? Is malfunction eliminated yes Make the parts upright no no Is the temperature sensor normal according to the Resistance Table? Is malfunction eliminated yes no Replace it with a temperature sensor with the same model yes no Is malfunction removed yes Replace the mainboard with the same model. yes End ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO 0DOIXQFWLRQRI%ORFNHG3URWHFWLRQRI,'8)DQ0RWRU+ Troubleshooting for H6 malfunction Stir the blade with a tool to see whether the blade rotates smoothly yes no Tighten the screw; reassemble the blade, motor and shaft bearing rubber base sub-assy to make sure there is no foreign object between them Is malfunction eliminated no Is the control terminal of PG motor connected tightly ? yes no Insert the control terminal of PG motor tightly yes Is malfunction eliminated no Stir the blade by hand to see whether the blade rotate s smoothly yes no Reinstall the blade and motor correctly yes no Turn on the unit again ; measure whether the output voltage on control terminal for PG motor is more than 50V within 1 min after the louvers are opened yes Measure the voltage of this foot to neutral wire on the mainboard Is malfunction eliminated yes yes yes Is the motor started up no no Replace PG motor no Is malfunction eliminated yes Replace the mainboard with the same model. End ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO 0DOIXQFWLRQRI3URWHFWLRQRI-XPSHU&DS& Troubleshooting for C5 malfunction Is there jumper cap on the mainboard? no Appearance of the jumper cap Assemble the jumper cap with the same model yes Is malfunction eliminated no Is the jumper cap inserted correctly and tightly ? no Insert the jumper cap tightly yes no Is malfunction eliminated yes Replace the jumper cap with the same model yes Is malfunction eliminated yes no Replace the mainboard with the same model. End ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO 0DOIXQFWLRQRI2YHUFXUUHQW3URWHFWLRQ( Troubleshooting for E5 malfunction Is the supply voltage unstable with big fluctuation? yes no Is the supply voltage too low with overload? Normal fluctuation is within 10 % of the rated voltage on the nameplate Malfunction is eliminated yes Malfunction is eliminated yes Malfunction is eliminated yes no yes Adjust the supply voltage to maintain it within normal range no no Is the indoor / outdoor heat exchanger too dirty,or are the air inlet and outlet blocked? yes no no The fan is abnormal? Fan speed is too low or fan doesn’t rotate yes no Measure the current of live wireon the main board with a clamp ampere meter. Is the current higher than the value of the overcurrent protection? Clean the indoor and outdoor heat exchangers and remove the blockage of air inlet and outlet Check the motor and reinstall the motor to have the fan run normally Malfunction is eliminated yes Malfunction is eliminated yes no no Replace the mainboard with the same model yes no Is there blockage inside the system? (Filth blockage, ice plug, greasy blockage, the Y-valve hasn’t been opened completely) yes Flush the heat exchangers with high pressure nitrogen Malfunction is eliminated yes no no Is the compressor running abnormally? Is there abnormal sound or oil leakage; is the temperature of the shell too high, etc.? yes Replace the mainboard with the same model Malfunction is eliminated yes no no Replace the mainboard with the same model End ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO 0DOIXQFWLRQRI=HURFURVVLQJ,QVSHFWLRQ&LUFXLW0DOIXQFWLRQRIWKH,'8)DQ0RWRU8 Troubleshooting for U8 malfunction Re-energize1 minute after de-erergization U8 is still displayed No The unit returns to normal. Conclusion:U8 is displayed due to instant energization afte deenergization while the capacitor discharges slowly. Yes The zero-cross detection circuit of the mainboard is defined abnormal.Replace the mainboard with the same model End ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO &DSDFLW\FKDUJLQJPDOIXQFWLRQRXWGRRUXQLWPDOIXQFWLRQ$3EHORZPHDQVFRQWUROERDUGRIRXWGRRUXQLW 0DLQGHWHFWLRQSRLQWV ƽ'HWHFWLIWKHYROWDJHRI/DQG1WHUPLQDORI;7ZLULQJERDUGLVEHWZHHQ9$&9$&E\DOWHUQDWLQJYROWDJHPHWHU ƽ,VUHDFWRU/ZHOOFRQQHFWHG",VFRQQHFWLRQZLUHORRVHQHGRUSXOOHGRXW",VUHDFWRU/GDPDJHG" Turn on the unit and wait 1 minute Use AC voltmeter to measure the voltage on the two ends of electrolytic capacitor (see fig 30) Voltage higher than 200V? Y Malfunction of the outdoor mainboard AP1 Replace outdoor mainboard N Measure the voltage input with AC voltmeter (see fig 30) Voltage within 180VAC~260VAC? N Power supply is abnormal; repair the power supply to restore the range between 180VAC ~260VAC Power on and restart the unit Is the Vmalfunction eliminated? Y Y Shut down the power and wait 20 minutes; or use DC voltmeter to measure the voltage on the two ends of electrolytic capacitor until the voltage is lower than 20V N Check the connection of reactor and connection wire If the wiring of reactor L is normal? N Connect the connection wire of reactor L correctly Power on and restart the unit Is the Vmalfunction eliminated? Y Y Replace outdoor mainboard AP1 N End ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO ,30SURWHFWLRQ+GHV\QFKURQL]LQJPDOIXQFWLRQ+RYHUFXUUHQWRIFRPSUHVVRUSKDVHFXUUHQW3$3EHORZPHDQV FRQWUROERDUGRIRXWGRRUXQLW 0DLQGHWHFWLRQSRLQWV ƽ,VYROWDJHLQSXWZLWKLQWKHQRUPDOUDQJH ƽ,IWKHFRQWUROERDUG$3LVZHOOFRQQHFWHGZLWKFRPSUHVVRU&203",IWKH\DUHORRVHQHG",IWKHFRQQHFWLRQVHTXHQFHLVFRUUHFW" ƽ+HDWH[FKDQJHRIXQLWLVQRWJRRGKHDWH[FKDQJHULVGLUW\DQGXQLWUDGLDWLQJHQYLURQPHQWLVEDG ƽ,IWKHV\VWHPSUHVVXUHLVWRRKLJK" ƽ,IWKHUHIULJHUDQWFKDUJLQJDPRXQWLVDSSURSULDWH" ƽ,IFRLOUHVLVWDQFHRIFRPSUHVVRULVQRUPDO",VFRPSUHVVRUFRLOLQVXODWLQJWRFRSSHUSLSHZHOO" ƽ,IWKHZRUNORDGRIXQLWLVKHDY\",IUDGLDWLQJRIXQLWLVJRRG" 0DOIXQFWLRQGLDJQRVLVSURFHVV H5, H7 or P5 is displayed after turning on the unit Measure if the voltage input is within 180~265V with AC voltmeter (see fig 30) N Repair power supply to make the power voltage normal Y The compressor is well connected with mainboard AP1? N Adjust it properly according to wiring diagram 5.1 Y Restart the unit The unit starts operation again Y Restart the unit The unit starts operation again Y Restart the unit The unit starts operation again Y N Y Clean the heat exchanger to improve its performance N Check if system pressure is too high? The unit starts operation again N Y Heat exchanger is blocked with dirt? Restart the unit N Y Adjust refrigerant charging amount N Replace outdoor mainboard AP1 Does the unit work normally Y N Replace compressor End ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO +LJKWHPSHUDWXUHDQGRYHUORDGSURWHFWLRQ($3EHORZPHDQVFRQWUROERDUGRIRXWGRRUXQLW 0DLQGHWHFWLRQSRLQWV ƽ,IWKHRXWGRRUDPELHQWWHPSHUDWXUHLVLQQRUPDOUDQJH ƽ,IWKHLQGRRUDQGRXWGRRUIDQDUHUXQQLQJQRUPDOO\ ƽ,IWKHUDGLDWLQJHQYLURQPHQWRILQGRRUDQGRXWGRRUXQLWLVJRRG E8 is displayed If the outdoor ambient temperature is higher than 53℃? Y N If the radiating of indoor and outdoor unit is good? N If the indoor and outdoor fan are running normally? Normal protection, please use it after improving the outdoor ambient temperature Unit restarts normally Y Unit restarts normally Y N Y Improve the radiating environment of unit (clean the heat exchanger and remove surrounding obstacles) N Connect normally? Y Adjust the connection Y Replace Fan capacitor Y Replace Motor Y Y Fan capacitor is broken? Replace outdoor mainboard N Motor is broken? N Replace mainboard End ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO 6WDUWXSIDLOXUH/&$3EHORZPHDQVFRQWUROERDUGRIRXWGRRUXQLW 0DLQGHWHFWLRQSRLQWV ƽ,IWKHFRPSUHVVRUZLULQJLVFRUUHFW" ƽ,IWKHVWRSWLPHRIFRPSUHVVRULVVXI¿FLHQW" ƽ,IWKHFRPSUHVVRULVGDPDJHG" ƽ,IWKHUHIULJHUDQWFKDUJLQJDPRXQWLVWRRPXFK" Turn on the unit If the stop time of compressor is more than 3min? If the compressor wire COMP(UVW) is well connected and connection sequence is correct? The stop time is not sufficient and the high and low pressure of system is not balanced , please start the unit after 3min Check the connection situation of outdoor mainboard AP1 and compressor COMP, and the connect it according to wiring diagram Does the unit start up normally? If the refrigerant charging amount is too much? Charge the refrigerant according to service manual Does the unit start up normally? Replace outdoor mainboard AP1 Is the malfunction eliminated? Replace the compressor End ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO 2YHUORDGDQGKLJKGLVFKDUJHWHPSHUDWXUHPDOIXQFWLRQ 0DLQGHWHFWLRQSRLQWV ƽ,IWKHHOHFWURQLFH[SDQVLRQYDOYHLVFRQQHFWHGZHOO",VWKHHOHFWURQLFH[SDQVLRQYDOYHGDPDJHG" ƽ,IWKHUHIULJHUDQWLVOHDNHG" ƽ7KHFRPSUHVVRURYHUORDGSURWHFWLRQWHUPLQDOLVQRWFRQQHFWHGZHOOZLWKWKHPDLQERDUG" ƽ,IWKHRYHUORDGSURWHFWRULVGDPDJHG" ƽ+HDWH[FKDQJHRIXQLWLVQRWJRRG"KHDWH[FKDQJHULVGLUW\DQGXQLWUDGLDWLQJHQYLURQPHQWLVEDG ƽ7RRPXFKORDGRIWKHV\VWHPFDXVHVKLJKWHPSHUDWXUHRIFRPSUHVVRUDIWHUZRUNLQJIRUDORQJWLPH" ƽ0DOIXQFWLRQRIGLVFKDUJHWHPSHUDWXUHVHQVRU" ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO H3 or E4 is displayed 30min after power off the unit If the overload protector SAT is well connected? N Y Under ambient temperature, test the resistance of overload protector with ohmmeter; resistance value should be<1000ohm Y N N If the wiring terminal FA of electronic expansion valve is well connected? Connect wire according to wiring diagram Y Replace EKV coil of electronic expansion valve Is the malfunction eliminated? Y Is the malfunction eliminated? Y Is the malfunction eliminated? Y Is the malfunction eliminated? Y Is the malfunction eliminated? Y N Replace overload protector SAT Check the situation of refrigerant; if there is leakage, please charge refrigerant according to the service manual N Compressor overload protection terminal is not connected well with the mainboard; reconnect them correctly N Heat exchange of unit is not good (heat exchanger is dirty and unit radiating environment is bad); improve the radiating environment and clean the heat exchanger N Too much load of the system causes high temperature of compressor after working for a long time; decrease the load for operation N Replace outdoor mainboard AP1 End ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO 3)&FRUUHFWLRQIRUSRZHUIDFWRUPDOIXQFWLRQRXWGRRUXQLWPDOIXQFWLRQ 0DLQGHWHFWLRQSRLQWV ƽ&KHFNLISRZHUSOXJLVFRQQHFWHGZHOOZLWKWKHVRFNHW ƽ&KHFNLIWKHUHDFWRURIRXWGRRUXQLWLVGDPDJHG" 0DOIXQFWLRQGLDJQRVLVSURFHVV start If power plug is connected well with the socket Y Is the malfunction eliminated? Connect the plug correctly N Check the connection wire between reactor mainboard and situation of connection N If there is short circuit or the connection wire is loose? Y Reconnect the wire or replace the connection wire according to the wiring diagram. Power on and restart the unit Is the malfunction eliminated? N N Check the surface of reactor coil If it is damaged? Y Replace the reactor Power on and restart the unit Is the malfunction eliminated? N Replace outdoor mainboard AP1 N End ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO &RPPXQLFDWLRQPDOIXQFWLRQ( 0DLQGHWHFWLRQSRLQWV ƽ&KHFNLIWKHFRQQHFWLRQZLUHDQGWKHEXLOWLQZLULQJRILQGRRUDQGRXWGRRUXQLWDUHFRQQHFWHGZHOODQGZLWKRXWGDPDJH ƽ,IWKHFRPPXQLFDWLRQFLUFXLWRILQGRRUPDLQERDUGLVGDPDJHG",IWKHFRPPXQLFDWLRQFLUFXLWRIRXWGRRUPDLQERDUG$3LVGDPDJHG" 0DOIXQFWLRQGLDJQRVLVSURFHVV E6 If the unit operates normally before malfunction Check the connection wire according to the wiring diagram. Check built-in wiring of indoor and outdoor unit Replace the wire Is the malfunction eliminated? If the connection wire is connected well? Reconnect the wire or replace the connection wire according to the wiring diagram. If the wiring is damaged? Check the malfunction type with communication malfunction detector Malfunction of outdoor communication circuit Replace indoor mainboard AP2 Is the malfunction eliminated? Replace outdoor mainboard AP1 Is the malfunction eliminated? 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YROWDJHVKRXOGEHYDULDEOHWHVW2WKHUZLVHWKHUHLVPDOIXQFWLRQRIPDLQERDUGRIRXWGRRUXQLW 7HVWWKHYROWDJHEHWZHHQSLQRI5ZKLWHDQGSLQRI87KHYROWDJHVKRXOGEHYDULDEOH7HVWYROWDJHEHWZHHQ SLQRI5ZKLWHDQGSLQRI8ZLWKXQLYHUVDOPHWHU7KHYROWDJHVKRXOGEHYDULDEOH2WKHUZLVHWKHUHLVPDOIXQFWLRQRI PDLQERDUGRIRXWGRRUXQLW ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO Start Measure voltage at the Test 10 position as shown in the diagram with a voltmeter Value jumping N Y Measure voltage at the Test 15 position as shown in the diagram with a voltmeter Y Value jumping N Y Fault with outdoor unit Measure voltage at the Test 11 position as shown in the diagram with a voltmeter Value jumping End N Y Measure voltage at the Test 12 position as shown in the diagram with a voltmeter N Value jumping Y The communication circuit of the outdoor unit is normal ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO 7URXEOHVKRRWLQJIRU1RUPDO0DOIXQFWLRQ $LU&RQGLWLRQHU&DQ WEH6WDUWHGXS 3RVVLEOH&DXVHV 1RSRZHUVXSSO\RUSRRU FRQQHFWLRQIRUSRZHUSOXJ 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Temp(ć ) Resistance(kΩ) -19 138.1 -18 128.6 -17 121.6 -16 115 -15 108.7 -14 102.9 -13 97.4 -12 92.22 -11 87.35 -10 82.75 -9 78.43 -8 74.35 -7 70.5 -6 66.88 -5 63.46 -4 60.23 -3 57.18 -2 54.31 -1 51.59 0 49.02 1 46.6 2 44.31 3 42.14 4 40.09 5 38.15 6 36.32 7 34.58 8 32.94 9 31.38 10 29.9 11 28.51 12 27.18 13 25.92 14 24.73 15 23.6 16 22.53 17 21.51 18 20.54 19.63 19 Temp(ć ) Resistance(kΩ) 20 18.75 21 17.93 22 17.14 23 16.39 24 15.68 25 15 26 14.36 27 13.74 28 13.16 29 12.6 30 12.07 31 11.57 32 11.09 33 10.63 34 10.2 35 9.779 36 9.382 37 9.003 38 8.642 39 8.297 40 7.967 41 7.653 42 7.352 43 7.065 44 6.791 45 6.529 46 6.278 47 6.038 48 5.809 49 5.589 50 5.379 51 5.197 52 4.986 53 4.802 54 4.625 55 4.456 56 4.294 57 4.139 58 3.99 Temp(ć ) Resistance(kΩ) 59 3.848 60 3.711 61 3.579 62 3.454 63 3.333 64 3.217 65 3.105 66 2.998 67 2.896 68 2.797 69 2.702 70 2.611 71 2.523 72 2.439 73 2.358 74 2.28 75 2.206 76 2.133 77 2.064 78 1.997 79 1.933 80 1.871 81 1.811 82 1.754 83 1.699 84 1.645 85 1.594 86 1.544 87 1.497 88 1.451 89 1.408 90 1.363 91 1.322 92 1.282 93 1.244 94 1.207 95 1.171 96 1.136 97 1.103 Temp(ć ) 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 Resistance(kΩ) 1.071 1.039 1.009 0.98 0.952 0.925 0.898 0.873 0.848 0.825 0.802 0.779 0.758 0.737 0.717 0.697 0.678 0.66 0.642 0.625 0.608 0.592 0.577 0.561 0.547 0.532 0.519 0.505 0.492 0.48 0.467 0.456 0.444 0.433 0.422 0.412 0.401 0.391 0.382 ,QVWDOODWLRQDQG0DLQWHQDQFH 6HUYLFH0DQXDO 5HVLVWDQFH7DEOHIRU,QGRRUDQG2XWGRRU7XEH7HPSHUDWXUH6HQVRU. Temp(ć ) Resistance(kΩ) -19 181.4 -18 171.4 -17 162.1 -16 153.3 -15 145 -14 137.2 -13 129.9 -12 123 -11 116.5 -10 110.3 -9 104.6 -8 99.13 -7 94 -6 89.17 -5 84.61 -4 80.31 -3 76.24 -2 72.41 -1 68.79 0 65.37 1 62.13 2 59.08 3 56.19 4 53.46 5 50.87 6 48.42 7 46.11 8 43.92 9 41.84 10 39.87 11 38.01 12 36.24 13 34.57 14 32.98 15 31.47 16 30.04 17 28.68 18 27.39 19 26.17 ,QVWDOODWLRQDQG0DLQWHQDQFH Temp(ć ) Resistance(kΩ) 20 25.01 21 23.9 22 22.85 23 21.85 24 20.9 25 20 26 19.14 27 18.13 28 17.55 29 16.8 30 16.1 31 15.43 32 14.79 33 14.18 34 13.59 35 13.04 36 12.51 37 12 38 11.52 39 11.06 40 10.62 41 10.2 42 9.803 43 9.42 44 9.054 45 8.705 46 8.37 47 8.051 48 7.745 49 7.453 50 7.173 51 6.905 52 6.648 53 6.403 54 6.167 55 5.942 56 5.726 57 5.519 58 5.32 Temp(ć ) Resistance(kΩ) 59 5.13 60 4.948 61 4.773 62 4.605 63 4.443 64 4.289 65 4.14 66 3.998 67 3.861 68 3.729 69 3.603 70 3.481 71 3.364 72 3.252 73 3.144 74 3.04 75 2.94 76 2.844 77 2.752 78 2.663 79 2.577 80 2.495 81 2.415 82 2.339 83 2.265 84 2.194 85 2.125 86 2.059 87 1.996 88 1.934 89 1.875 90 1.818 91 1.736 92 1.71 93 1.658 94 1.609 95 1.561 96 1.515 97 1.47 Temp(ć ) 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 Resistance(kΩ) 1.427 1.386 1.346 1.307 1.269 1.233 1.198 1.164 1.131 1.099 1.069 1.039 1.01 0.983 0.956 0.93 0.904 0.88 0.856 0.833 0.811 0.77 0.769 0.746 0.729 0.71 0.692 0.674 0.658 0.64 0.623 0.607 0.592 0.577 0.563 0.549 0.535 0.521 0.509 6HUYLFH0DQXDO 5HVLVWDQFH7DEOHRI2XWGRRU'LVFKDUJH7HPSHUDWXUH6HQVRU. Temp(ć ) Resistance(kΩ) -29 853.5 -28 799.8 -27 750 -26 703.8 -25 660.8 -24 620.8 -23 580.6 -22 548.9 -21 516.6 -20 486.5 -19 458.3 -18 432 -17 407.4 -16 384.5 -15 362.9 -14 342.8 -13 323.9 -12 306.2 -11 289.6 -10 274 -9 259.3 -8 245.6 -7 232.6 -6 220.5 -5 209 -4 198.3 -3 199.1 -2 178.5 -1 169.5 0 161 1 153 2 145.4 3 138.3 4 131.5 5 125.1 6 119.1 7 113.4 8 108 9 102.8 Temp(ć ) Resistance(kΩ) 10 98 11 93.42 12 89.07 13 84.95 14 81.05 15 77.35 16 73.83 17 70.5 18 67.34 19 64.33 20 61.48 21 58.77 22 56.19 23 53.74 24 51.41 25 49.19 26 47.08 27 45.07 28 43.16 29 41.34 30 39.61 31 37.96 32 36.38 33 34.88 34 33.45 35 32.09 36 30.79 37 29.54 38 28.36 39 27.23 40 26.15 41 25.11 42 24.13 43 23.19 44 22.29 45 21.43 46 20.6 47 19.81 48 19.06 Temp(ć ) Resistance(kΩ) 49 18.34 50 17.65 51 16.99 52 16.36 53 15.75 54 15.17 55 14.62 56 14.09 57 13.58 58 13.09 59 12.62 60 12.17 61 11.74 62 11.32 63 10.93 64 10.54 65 10.18 66 9.827 67 9.489 68 9.165 69 8.854 70 8.555 71 8.268 72 7.991 73 7.726 74 7.47 75 7.224 76 6.998 77 6.761 78 6.542 79 6.331 80 6.129 81 5.933 82 5.746 83 5.565 84 5.39 85 5.222 86 5.06 87 4.904 Temp(ć ) 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 Resistance(kΩ) 4.754 4.609 4.469 4.334 4.204 4.079 3.958 3.841 3.728 3.619 3.514 3.413 3.315 3.22 3.129 3.04 2.955 2.872 2.792 2.715 2.64 2.568 2.498 2.431 2.365 2.302 2.241 2.182 2.124 2.069 2.015 1.963 1.912 1.863 1.816 1.77 1.725 1.682 1.64 1RWH7KHLQIRUPDWLRQDERYHLVIRUUHIHUHQFHRQO\ ,QVWDOODWLRQDQG0DLQWHQDQFH 2013 Johnson Controls, Inc. www.johnsoncontrols.com Doc. 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