62
LG 62 Error Code – Outdoor PCB Heat Sink Temp High
Air Conditioner · CRITICAL Severity
What This Error Means
Outdoor unit inverter compressor PCB heat sink temperature is too high
Diagnostic & Repair Steps
1
Power Off Immediately
PCB heat sink overtemp is critical.
PCB heat sink overtemp is critical.
RESET
~2 min
2
Inspect Outdoor Unit Airflow
Check for blocked airflow.
Check for blocked airflow.
INSPECT
~10 min
3
Check Refrigerant Charge
Excess charge causes PCB overheating. ⚠️ Certified technician only
Excess charge causes PCB overheating. ⚠️ Certified technician only
TEST
~20 min
4
Inspect Heat Sink for Dirt
Clean heat sink fins if dirty.
Clean heat sink fins if dirty.
CLEAN
~10 min
5
Replace Outdoor PCB If Faulty
Refer to www.lg-dfs.com service manual.
Refer to www.lg-dfs.com service manual.
REPLACE
~30 min
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