Model reference
LG RC180DHXGH/XSA
Air Conditioner
1 document28 error codes8 service modes
Available documentation
Service Manual
- System Air Conditioner98 pg
MyPros+ Max
Diagnose your LG RC180DHXGH/XSA.
- 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 (28)
CodeMeaning
E201Unit quantity mismatch between indoor and outdoor units.E202Abnormal state, no communication between Indoor and Outdoor Main PCB.E2031 minute timeout of communication error between Main and Inverter PCB.E221Outdoor temperature sensor error (Open/Short).E231Condenser temperature sensor error (Open/Short).E251Inverter compressor discharge temperature sensor error (Open/Short).E320OLP sensor error.E403Freezing control causes compressor downE404Protection of outdoor overload when compressor stops.E416Discharge over temperatureE440Heating operation is not available since the outdoor air temperature is over…E441Cooling operation is not available since the outdoor air temperature is lower…E458Outdoor unit BLDC Fan 1 error.E461Compressor starting error.E462Primary current trip error / current protection control causes compressor down.E463OLP protection control caused compressor downE464IPM (IGBT Module) over current (O.C.) error.E465Compressor overload error.E466DC Link over voltage/low voltage error.E467Compressor wire missing error.E468Current sensor error.E471Outdoor EEPROM error.E474IPM (IGBT Module) or PFCM temperature sensor error.E475Outdoor unit BLDC Fan 2 error.E484PFC overload error.E500IPM is overheated.E554Gas leak errorE556Capacity mismatch between indoor and outdoor units.Service modes (8)
- ECO Mode (Power Save - Outdoor Unit)["ECO mode lamp (RED) turns on with BLANK segments displayed."]
- Indoor Unit Address Setting (NS100/125/140/155)["Hold down the filter and mode buttons at the same time for 5 seconds.","Menu displays
- Indoor Unit Address Setting (NS180)["Press and hold two buttons at the same time for more than 3 seconds until Main menu is…
- Indoor Unit DIP Option Code Setting (NS100/125/140/155)["Hold down the filter and mode buttons at the same time for 5 seconds.","Menu displays
- Indoor Unit Installation Option Setting (NS180)["Press and hold two buttons at the same time for more than 3 seconds until Main menu is…
- Indoor Unit Option Code Setting (NS100/125/140/155)["Hold down two buttons at the same time for 5 seconds.","Menu displays
- Test Run Mode (Outdoor Unit)["Press K1 key once on outdoor PCB for Heating test run.","Press K1 key twice for Defrost test…
- View Mode (Outdoor Unit)["Press K4 key on outdoor PCB repeatedly to cycle through display parameters."]
Full entry steps, exit procedures, and test sequences are available in Max.
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