LG Refrigerator Error Code CH

The CH code on an LG refrigerator indicates a high side cycle leakage condition in the sealed refrigerant system. It is triggered when the refrigerator detects signs of a refrigerant leak, a restriction in the high side circuit, a failing compressor, or a bad valve. This is a sealed system fault that requires a certified technician to diagnose using pressure testing equipment. The refrigerator may not cool properly while this code is active.

A CH code means the refrigerator is not cooling correctly, which puts perishable food at risk of spoiling. While the refrigerator itself does not pose an immediate safety hazard to people in most cases, continuing to run the unit with a sealed system fault can cause additional damage to the compressor. It is best to have the unit inspected promptly and to move perishables to a functioning refrigerator in the meantime.

Repair costs vary widely depending on the root cause. A refrigerant recharge after fixing a leak can range from around 150 to 400 dollars, while a compressor replacement on an LG refrigerator typically costs between 300 and 700 dollars including parts and labor. A restriction repair involving the filter drier may fall in the 200 to 450 dollar range. Getting a diagnostic visit first, usually 75 to 150 dollars, helps determine exactly what repair is needed before committing to a cost.

The CH code involves the sealed refrigeration system, which requires EPA 608 certification to legally handle refrigerants. Diagnosis requires manifold gauges and specialized leak detection tools. Homeowners should not attempt to open or service the sealed system. Contact a certified appliance technician to perform the smart SVC UP diagnostic process and make repairs.

A reset may temporarily clear the CH code from the display, but it will not resolve the underlying sealed system issue. If the cause is a refrigerant leak, restriction, bad compressor, or faulty valve, the code will return once the refrigerator resumes normal operation and the control system detects the fault again. A proper repair of the root cause is required for the code to clear permanently.