Model reference
Samsung AVXC4H056EB
Air Conditioner
5 documents58 error codes3 service modes
Available documentation
Service Manual
- LG Samsung AVXC4H056EB Troubleshooting69 pg
- Circuit Description68 pg
Tech Sheet
- LG Samsung AVXC4H056EB Product Specification44 pg
Other
- LG Samsung AVXC4H056EB Disassembly _ Reassembly109 pg
Installation Guide
- LG Samsung AVXC4H056EB Precaution3 pg
MyPros+ Max
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- Step-by-step diagnostics from the service manual
- Test values, resistance specs, and wiring references
- Verified part numbers when replacement is needed
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Error codes (58)
CodeMeaning
ChCompressor preheating in progressE101Indoor unit room temperature sensor error (open/short).E102Indoor unit EVAP IN sensor error (open/short).E104Indoor unit EVAP OUT sensor error (open/short).E121Indoor heat exchanger EVAP IN sensor breakawayE122Indoor heat exchanger EVAP OUT sensor breakawayE154Oil valve (equal oil valve) 1 self-diagnosis errorE160Indoor unit fan motor starting errorE2Communication error during trackingE201Tracking errorE202Outdoor temperature sensor error (open/short defect).E211Digital compressor discharge temperature sensor error (open/short).E212Constant speed compressor discharge temperature sensor error (open/short) for…E213Constant speed compressor discharge temperature sensor error (open/short) for…E221High pressure sensor error (open/short).E222Low pressure sensor error (open/short).E231Compressor discharge temperature sensor breakaway for digital compressor (main…E232Compressor discharge temperature sensor breakaway for fixed 1 compressor (main…E233Compressor discharge temperature sensor breakaway for fixed 2 compressor (main…E235Compressor sump temperature (oil temperature) sensor breakaway for digital…E237Suction temperature sensor breakawayE241Oil temperature sensor error (open/short).E242Equal oil temperature sensor error (open/short).E251COND OUT temperature sensor error (open/short) on outdoor unit.E252COND OUT sensor breakaway on outdoor unitE253Dual-pipe temperature sensor error (open/short).E254Outdoor unit COND MID temperature sensor error (open/short).E262Compressor discharge temperature sensor breakawayE263Compressor discharge temperature sensor breakawayE264Compressor discharge temperature sensor breakawayView all 58 error codes
E301Communication error between indoor unit and outdoor unit during tracking.E303Communication error between indoor unit and outdoor unit after completion of…E401Instant power-off errorE403Prohibit starting by low pressureE407Compressor down by low pressure protection controlE416Compressor down by high pressure protection controlE425Reverse phase or open/missing phase error on 3-phase power supply to the…E461Compressor sump temperature protection controlE464Compressor down by compressor discharge temperature sensor value exceeding…E465Compressor over current errorE466Compressor over current error by compression ratioE468Compressor low current errorE471Digital compressor loading failure or OLP trip detected based on…E501Prohibit compressor starting according to outdoor temperatureE502Prohibit compressor starting according to outdoor temperatureE551Indoor unit EEV open error (1st detection)E554Indoor unit EEV close error (1st detection)E556Compressor down by indoor unit freezing protection controlE557Indoor unit EEV close error (2nd detection)E558Indoor unit EEV open error (2nd detection)E601Detection of floating switch of indoor unit drain pump (1st detection)E602Detection of floating switch of indoor unit drain pump (2nd detection)E801EEPROM errorOCOil collection operationU200Communication error between outdoor unit main and sub MICOM or between outdoor…U201Communication error between outdoor unit main and sub MICOM or between outdoor…U202Communication error between outdoor unit main and sub MICOM or between outdoor…U203Communication error between outdoor unit main and sub MICOM or between outdoor…
Service modes (3)
- Error ResetPress the reset key K3 on the outdoor unit PCB.
- Test OperationPress KEY 4 on the outdoor unit PCB to initiate test operation for every room.
- View ModeAccess via S-net or View Mode on the outdoor unit to read sensor values and system parameters.
Full entry steps, exit procedures, and test sequences are available in Max.
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