Model reference
LG AVMWH032CA0G
Heat Pump
2 documents162 error codes3 service modes
Available documentation
Service Manual
- LG Samsung AVMWH032CA0G Service Manual Troubleshooting118 pg
- LG Samsung AVMWH032CA0G Service Manual Operation Instruction Installation25 pg
MyPros+ Max
Diagnose your LG AVMWH032CA0G.
- Step-by-step diagnostics from the service manual
- Test values, resistance specs, and wiring references
- Verified part numbers when replacement is needed
Start diagnosing
$29/month · Cancel anytime · Or $9.95 3-day pass
Error codes (162)
CodeMeaning
AxIndoor unit EVAP IN sensor breakaway error (x = indoor unit address).BxSimultaneous breakaway of indoor unit EVAP IN and EVAP OUT sensors (x = indoor…ChCompressor preheating in progress via crank case heater (CCH)CxElectronic expansion valve close error for xth indoor unit.DxElectronic expansion valve open error for xth indoor unit.E1Communication error between indoor and outdoor units after completion of…E101Communication error between the indoor unit and the wired remote panel (PAC).E102Indoor unit room temperature sensor OPEN/SHORT error.E103Indoor unit EVAP IN sensor OPEN/SHORT error.E104Indoor unit EVAP OUT sensor OPEN/SHORT error.E105Indoor unit EVAP IN sensor breakaway.E106Indoor unit EVAP OUT sensor breakaway.E107Simultaneous breakaway of indoor unit EVAP IN/OUT sensor.E108Auxiliary (electric) heater sensor 1 error.E109Auxiliary (electric) heater sensor 2 error.E110Auxiliary (electric) heater sensor 3 error.E111Shutter sensor error.E112Perfect fan sensor error.E113MCU temperature sensor OPEN/SHORT error.E151Indoor unit EEV open failure.E152Indoor unit EEV close failure.E153Indoor unit float switch detection error.E154Indoor fan error.E155Mixed operation error (operating heat and cool mode at same time).E156EEPROM error.E157Option setting error for indoor unit.E158Electric heater discharge temperature protection error.E159No fan error related to the electric heater.E160Software setup error in peripheral control device using option.E161The 1st MCU SOL V/V cooling/heating opening at the same time.View all 162 error codes
E162The 2nd MCU SOL V/V cooling/heating opening at the same time.E163The 2nd MCU SOL V/V error.E164No change of EVAP IN temperature during the piping check.E165No change of EVAP OUT temperature during the piping check.E166Change of EVAP IN temperature detected on other indoor unit during piping check.E167Change of EVAP OUT temperature detected on other indoor unit during piping…E2Tracking errorE201Installed indoor unit number setting error on outdoor unit.E202Communication error between indoor and outdoor unit.E203Outdoor PCB MICOM communication error between main and sub.E204Communication error between the outdoor unit and MCU.E205Indoor unit connected with confluence kit without continuity.E206Indoor unit connected with confluence kit and setting address was overlapped…E207MCU address does not match with indoor unit address.E208Installed MCU quantity setup error in the outdoor PCB.E209MCU address setting was overlapped.E210Rotary switch for indoor unit address in MCU was overlapped among MCUs.E211DIP switch for indoor unit setting was ON position even though indoor unit was…E212DIP switch for indoor unit setting was OFF position even though indoor unit was…E261Digital discharge sensor breakaway.E262Fixed 1 discharge sensor breakaway (|Tdisc,dE263Fixed 2 discharge sensor breakaway.E264Fixed 3 discharge sensor breakaway.E271Sump-main (digital compressor) sensor breakaway error.E272Sump Sub 1 sensor breakaway error.E273Sump Sub 2 sensor breakaway error.E274Sump Sub 3 sensor breakaway error.E275Suction sensor breakaway error.E3Indoor unit float switch error (float switch open for longer than 1 minute).E301Outdoor temperature (OUT-TEMP) sensor OPEN/SHORT error.E302Outdoor temperature sensor breakaway.E303COND-OUT MAIN temperature sensor OPEN/SHORT error.E304COND-OUT SUB 1 temperature sensor OPEN/SHORT error.E305COND-MID sensor breakaway of outdoor unit.E306COND-OUT 1 sensor breakaway.E307PWM Discharge temperature sensor OPEN/SHORT error (detected when outdoor temp…E308Fixed capacity compressor 1 discharge sensor OPEN/SHORT error (detected when…E309Fixed capacity compressor 2 discharge sensor OPEN/SHORT error (detected when…E310Fixed capacity compressor 3 discharge sensor OPEN/SHORT error (detected when…E321SUMP TEMP DIGITAL sensor OPEN/SHORT error (detected when outdoor temp over…E322SUMP TEMP FIXED 1 sensor OPEN/SHORT error (detected when outdoor temp over…E323SUMP TEMP FIXED 2 sensor OPEN/SHORT error (detected when outdoor temp over…E324SUMP TEMP FIXED 3 sensor OPEN/SHORT error (detected when outdoor temp over…E331High pressure sensor OPEN/SHORT error (SHORT below 0.4V, OPEN over 4.2V…E332Low pressure sensor OPEN/SHORT error (SHORT below 0.4V, OPEN over 4.7V…E333High pressure sensor breakaway.E334Low pressure sensor breakaway.E335Suction temperature sensor OPEN/SHORT error.E336Main cooling solenoid valve open error.E3374-Way valve operation error.E4Setting error of option switch in indoor unit (wired remote controller address…E401Outdoor unit freezing detection 1.E402Outdoor unit freezing detection 2.E403Outdoor unit freezing detection 3E404Outdoor unit overload 1 protection control error.E405Outdoor unit overload 2 protection control error.E406Outdoor unit overload 3 protection control error.E407Compressor down by high pressure sensor protection control 1.E408Compressor down by high pressure sensor protection control 2.E409Compressor down by high pressure sensor protection control 3.E410Compressor down by low pressure sensor protection control 1.E411Compressor down by low pressure sensor protection control 2.E412Compressor down by low pressure sensor protection control 3.E413Outdoor unit SUMP DOWN 1 protection control.E414Outdoor unit SUMP DOWN 2 protection control.E415Outdoor unit SUMP DOWN 3 protection control.E416Outdoor unit discharge temperature 1 protection control.E417Outdoor unit discharge temperature 2 protection control.E418Outdoor unit discharge temperature 3 protection control.E419Outdoor unit EEV open 1 self diagnosis error.E420Outdoor unit EEV open 2 self diagnosis error.E421Outdoor unit EEV open 3 self diagnosis error.E422Outdoor unit EEV close 1 self diagnosis error.E423Outdoor unit EEV close 2 self diagnosis error.E424Outdoor unit EEV close 3 self diagnosis error.E425Outdoor unit reverse phase detection 1 error.E426Outdoor unit reverse phase detection 2 error.E427Outdoor unit reverse phase detection 3 error.E428Outdoor unit compression rate 1 error.E429Outdoor unit compression rate 2 error.E430Outdoor unit compression rate 3 error.E431Heating mode operation forbidden when outdoor temperature over 30°C.E432Cooling mode operation forbidden when outdoor temperature below -5°C.E433Refrigerant charging operation restriction at outdoor temperature over 15°C in…E434Instant power off error (disappears when compressor runs).E5Error of momentary power failure (disappears when the unit is cycled off/on).E501Defrosting operation (not an error).E502Low discharge pressureE503Oil equability (leveling) operation between compressors (not an error).E504Loading failure of digital compressor.E505Full leakage of refrigerant in outdoor unit.E601Communication error between wired remote controller and indoor unit.E602Communication error between master and slave wired remote controller.E603Communication error between 7-day scheduler and wired remote controller.FxIndoor unit EVAP OUT sensor breakaway error (x = indoor unit address).G2Total leakage of refrigerant in outdoor unit or compressor loading failure.G3Breakaway of COND MID sensor in outdoor unit.G4Breakaway of oil temperature sensor (detected once or more times).G5Breakaway of suction temperature sensor.G6Breakaway of fixed compressor discharge sensor (detected once or more times).G7OPEN/SHORT error of room sensor in indoor unit (x = indoor unit address).G8OPEN/SHORT error of EVAP IN sensor in indoor unit (x = indoor unit address).G9OPEN/SHORT error of EVAP OUT sensor in indoor unit (x = indoor unit address).P0System down due to high discharge temperature exceeding 135°C.P1System down due to high condenser temperature (67°C threshold, 6 detections =…P2SUMP COMP DOWNP3System down due to low pressure switch detection (below 1.2 kg/cm2G).P4Reverse phase or open phase error on 3-phase power supply to the compressor.P5System down due to frozen indoor unit heat exchanger (temperature kept at -4°C…P6In removing frost (defrost operation in progressP7Momentary power failureP701Float switch detection error (low level riskP702Indoor unit EEV closing error (low level risk).P703Indoor unit EEV opening error (low level risk).P704MCU solenoid valve failure (low level risk).P8Compressor down due to high pressure sensor protection control (over 28…P9Compressor down due to low pressure sensor protection control (below 3 kg/cm2G…PACompressor down due to condensation ratio protection control (ratio above 8.5…qxIndoor unit fan motor starting error (x = indoor unit address).rxCooling operation forbidden when outdoor temperature is below -5°C (flickering…sxHeating operation forbidden when outdoor temperature is over 30°C, or charging…t1Outdoor temperature (OUT TEMP) sensor OPEN/SHORT error (over 4.9V/-50°C or…t2Condenser temperature (COND TEMP) sensor OPEN/SHORT error (over 4.9V/-50°C or…t3PWM Discharge temperature sensor OPEN/SHORT error, detected when outdoor temp…t4Liquid refrigerant pipe (COND OUT) temperature sensor OPEN/SHORT error (over…t5Oil temperature sensor OPEN/SHORT error, detected when outdoor temp is over…t6Suction temperature sensor OPEN/SHORT error (over 4.9V/-50°C or below…t7High pressure sensor OPEN/SHORT error, detected when compressor is on (SHORT…t8Low pressure sensor OPEN/SHORT error, detected when compressor is on (SHORT…t9Fixed compressor discharge sensor OPEN/SHORT error, detected when outdoor temp…toLow pressure sensor breakaway error.tuHigh pressure sensor breakaway error.
Service modes (3)
- Error resetPress reset key KEY 3 (K3) on outdoor unit PCB.
- Piping checkPress KEY 5 (K5) on outdoor unit PCB after pipe check to display error information.
- Test operationPress KEY 4 (K4) on outdoor unit PCB to enter test operation mode (all indoor units operate).
Full entry steps, exit procedures, and test sequences are available in Max.
Related LG heat pump models
78,000+ service manuals · 160,000+ error codes · 55+ brands
Get Started$29/month · Cancel anytime · Or $9.95 3-day pass