LG Refrigerator CO Error Code

What it means

LG identifies CO as a communication error between the refrigerator main board and the display.

Try this first

Request LG refrigerator service for this internal-component error.

Can I keep using it?Because LG classifies this as an internal-component fault, arrange service rather than relying on repeated resets.

Repair usually required?LG directs service for this error.

If the error keeps returning

Use the linked official LG Help Library article for the manufacturer procedure.

Official source

Troubleshooting information verified against manufacturer support documentation.

View manufacturer support page →

Safety note:ApplianceSignal provides general troubleshooting information. Always follow the appliance manufacturer's safety instructions and disconnect power when required.

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LG Refrigerator CO: Quick Answer

What it means: LG identifies CO as a communication error between the refrigerator main board and the display.

First thing to check

Request LG refrigerator service for this internal-component error.

Can I keep using it?

Because LG classifies this as an internal-component fault, arrange service rather than relying on repeated resets.

Repair outlook

LG directs service for this error.

If the code remains

Use the linked official LG Help Library article for the manufacturer procedure.

Model note: Error-code meanings and procedures can vary by model and model year. Confirm the code against the documentation for your exact appliance before replacing parts.

Manufacturer reference: lg.com