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Air Conditioners Error Codes
Fault codes for air conditioners from every brand in the database, with the meaning of each code. Choose your brand for the full list with fix levels, or open a code directly.
LG Air Conditioners
41 codes · LG Air Conditioner Error Codes: Full List
LG CH01Indoor room temperature sensor errorLG CH02Indoor coil inlet pipe sensor errorLG CH03Wired remote controller communication errorLG CH04Drain pump / float switch error: condensate level too highLG CH05Communication error between indoor and outdoor unitsLG CH06Indoor coil outlet pipe sensor errorLG CH07Indoor units set to different operating modesLG CH09Indoor unit EEPROM errorLG CH10Indoor fan motor lock: fan not turningLG CH12Indoor coil middle pipe sensor errorLG CH21Compressor overcurrent / IPM fault (DC peak)LG CH22Input current too high (CT2 max current)LG CH23DC link voltage too lowLG CH24Pressure switch tripped (high or low pressure)LG CH25Supply voltage too high or too lowLG CH26Inverter compressor position error: compressor not rotatingLG CH27PSC fault: inverter protection circuit trippedLG CH28DC link voltage too highLG CH29Compressor input current too highLG CH32Compressor discharge temperature too high (inverter)LG CH33Compressor discharge temperature too high (fixed-speed)LG CH35Low pressure sensor error: refrigerant pressure too lowLG CH36Refrigerant leak detectedLG CH38Refrigerant leak detectedLG CH40Current transformer (CT) sensor errorLG CH41Compressor discharge pipe sensor error (inverter)LG CH44Outdoor air temperature sensor errorLG CH45Outdoor condenser pipe sensor errorLG CH46Outdoor suction pipe sensor errorLG CH47Compressor discharge pipe sensor error (fixed-speed)LG CH48Outdoor discharge pipe and air sensors disconnectedLG CH51Over capacity: too much indoor capacity connectedLG CH52Communication error inside the outdoor control boardLG CH53Communication error reported by the outdoor unitLG CH60Outdoor unit EEPROM checksum errorLG CH61Condenser coil temperature too highLG CH62Outdoor inverter heat sink temperature too highLG CH63Condenser coil temperature too lowLG CH65Heat sink temperature sensor errorLG CH67Outdoor fan motor lock: fan not turningLG CLChild lock is on: not an error
Daikin Air Conditioners
49 codes · Daikin Air Conditioner Error Codes: Full List
Daikin A0External protection device has activatedDaikin A1Indoor unit control board faultDaikin A3Drain water level is too highDaikin A5Freeze-up protection in cooling, high-pressure control in heatingDaikin A6Indoor fan motor faultDaikin A7Swing flap (louvre) motor faultDaikin A9Electronic expansion valve fault (indoor unit)Daikin AHAir cleaner dust collector faultDaikin C4Indoor heat exchanger liquid pipe thermistor faultDaikin C5Indoor heat exchanger gas pipe thermistor faultDaikin C7Front panel drive motor faultDaikin C9Indoor suction air thermistor faultDaikin CCHumidity sensor faultDaikin E0Outdoor unit protection device has activatedDaikin E1Outdoor unit control board faultDaikin E3High pressure switch has activatedDaikin E4Low pressure switch has activatedDaikin E5Inverter compressor motor lock or overheatDaikin E6Standard compressor motor overcurrent or lockDaikin E7Outdoor fan motor faultDaikin E8Inverter compressor overcurrentDaikin E9Electronic expansion valve coil fault (outdoor unit)Daikin EAFour-way valve or cool/heat switching faultDaikin F3Discharge pipe temperature faultDaikin F6Abnormal high pressure or refrigerant overchargedDaikin H0Compressor sensor system faultDaikin H3High pressure switch faultDaikin H6Compressor position detection sensor faultDaikin H7Outdoor fan motor signal faultDaikin H8Compressor input current (CT) system faultDaikin H9Outdoor air thermistor faultDaikin J3Discharge pipe thermistor faultDaikin J5Suction pipe thermistor faultDaikin J6Outdoor heat exchanger thermistor faultDaikin L3Electrical component box overheatingDaikin L4Inverter cooling fin overheatingDaikin L5Inverter instantaneous overcurrent (DC output)Daikin L8Inverter compressor overcurrent (overload)Daikin L9Inverter compressor start-up errorDaikin P4Inverter cooling fin temperature sensor faultDaikin PJOutdoor unit capacity setting faultDaikin U0Shortage of refrigerantDaikin U2Power supply fault or momentary power failureDaikin U4Indoor–outdoor transmission (communication) errorDaikin U5Indoor unit–remote controller transmission errorDaikin U8Main–sub remote controller transmission errorDaikin UAImproper combination of indoor and outdoor unitsDaikin UFSystem setup not completedDaikin UHSystem fault (transmission wiring or indoor board)