Written by
Maya Chen Editorial TeamPublished September 5, 2026Updated October 20, 2026
Error codeCH, CH E, E CH
ApplianceRefrigerator
Quick answer
CH, CH E or E CH on an LG refrigerator indicates a leak on the high-pressure side of the refrigerant cycle.
Model compatibility: LG reuses codes across series and model years, so CH, CH E, E CH may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
High-side refrigerant leak.
CH, CH E or E CH on an LG refrigerator means a refrigerant leak on the high-pressure side. LG says there is a high possibility the leak is from the condenser.
What sets it off
The manual notes it can be caused by a faulty valve, and that it appears when the temperature and compressor sensors show abnormal values.
What to do
No troubleshooting steps are listed. The refrigerator requires a repair service.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your LG appliance?
Book a specialist visit for a clear estimate and approval before any repair.
