LG Refrigerator Error Code CO
CO on a LG refrigerator usually means: A communication fault occurred between the main board and the display.
Fix it fast: Request professional service. Full ranked steps below.
- Likely part
- control board
- Fault type
- communication
How to fix CO — ranked steps
Try these in order. Stop when the code clears.
-
1 Request professional service
Pro only- LG publishes no user troubleshooting for this board communication fault; request repair service.
Other LG Refrigerator codes
A fault was detected in the compressor relay. On a LG Refrigerator, code 22 points to the compressor relay.
A door is ajar or an object is preventing it from closing. On a LG Refrigerator, code 67 points to the door seal.
The condenser discharge-fan feedback signal fell below its threshold.
A high-side refrigerant leak or restriction was detected. On a LG Refrigerator, code CHE points to the condenser and refrigerant line.
A low-side refrigerant leak was detected. On a LG Refrigerator, code CLE points to the evaporator and refrigerant line.
A defrost cycle ran beyond one hour without completing. On a LG Refrigerator, code DH points to the defrost heater.
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