LG · Air Conditioning
This code means the temperature sensor on the heat sink of the inverter has detected a temperature that is too high. This indicates a potential overheating issue within the inverter.
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Turn off the unit and check for adequate ventilation around the outdoor unit.
Ensure the outdoor unit's fan is working correctly.
Reset the system by unplugging it for 1 minute.
If overheating continues, the unit requires inspection by a technician.