What CF means
The condenser fan, which helps the cooling system shed heat, isn't working. The compressor overworks and cooling drops.
Also shown as: Er CF, depending on the model.
Likely causes
- Condenser fan blocked or failed
Safe first checks
- Request service.
When to stop
The condenser area is part of the sealed cooling system. Leave it to a technician.
Checked against: LG USA Support: LG Refrigerator digital and analog error codes. Codes can differ by model and year, so confirm with your owner's manual.