Written by
Maya Chen Editorial TeamPublished September 5, 2026Updated October 20, 2026
Error codeCH
ApplianceDehumidifier
Quick answer
CH on an LG dehumidifier means a refrigerant leak, and the unit needs repair service.
Model compatibility: LG reuses codes across series and model years, so 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
CH indicates a refrigerant leak in the dehumidifier.
A plain CH on an LG dehumidifier indicates a refrigerant leak. The owner’s manual gives no troubleshooting steps for it, and says the unit will require a repair service.
Do not confuse it with numbered CH codes
The display can also show CH followed by digits. Those are separate entries:
CH01 is an electronic abnormality, such as a humidistat or main board issue.
Because the manual points straight to repair, call (310) 742-8008 for LG dehumidifier repair in Los Angeles. Say that the display shows CH and give the model number.
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.
