Can I fix LG code CH myself?

Start with these safe checks: Request service. Sealed refrigerant system repairs require an EPA-certified technician.

When should I call a technician for code CH?

Sealed refrigerant system repairs require an EPA-certified technician. Don't open the sealed refrigerant system, cut or braze lines, or add refrigerant. That needs an EPA-certified technician. Turn power off at the breaker or disconnect before opening any panel, and leave capacitors, compressors and control boards to a pro: they can hold a dangerous charge even with the power off.

LG Refrigerator Error Code CH / Er CH: Refrigerant leak (high side)

What CH means

LG says CH indicates a refrigerant leak on the high-pressure side, possibly from a faulty valve.

Also shown as: Er CH, depending on the model.

Likely causes

Sealed system leak or valve fault

Safe first checks

Request service.

When to stop

Sealed refrigerant system repairs require an EPA-certified 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.