Written by
Maya Chen Editorial TeamPublished September 5, 2026Updated October 20, 2026
Error codeCH02
ApplianceDehumidifier
Quick answer
CH02 on an LG dehumidifier is an electronic abnormality; try a 20 second unplug reset first.
Model compatibility: LG reuses codes across series and model years, so CH02 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
CH02 is an electronic abnormality such as a humidistat or main board issue.
CH02 on the display
Seeing CH02 on your LG dehumidifier means the control electronics report something abnormal. The manual names the humidistat and the main board as examples of where the issue can sit.
Try this first
Pull the plug and wait 20 seconds. Then power the unit up again. When the code returns, stop there: the unit calls for repair service.
Same family of codes
Compare CH01 and CH03, both listed with matching wording, and CH24 if the message turns out to be about the pressure switch.
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.
