Written by
Maya Chen Editorial TeamPublished September 5, 2026Updated October 20, 2026
Error codeCH01
ApplianceDehumidifier
Quick answer
CH01 on an LG dehumidifier is an electronic abnormality. Unplugging for 20 seconds resets the unit.
Model compatibility: LG reuses codes across series and model years, so CH01 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
CH01 is an electronic abnormality such as a humidistat or main board issue.
CH01 appears on an LG dehumidifier when the unit detects an electronic abnormality, for example a humidistat or main board issue.
Reset it
Unplug the dehumidifier and leave it out for 20 seconds.
Plug it back in to restore power.
Watch whether CH01 comes back. If it does, the unit will need repair service.
Next to check
Its neighbors in the list are CH02 and CH03, which carry the same electronic meaning, and CH, which is a refrigerant leak.
LG dehumidifier service in Los Angeles
If the reset does not hold, LG dehumidifier service in Los Angeles starts with a call to (310) 742-8008. Keep the model number nearby and mention the unplug reset you already did.
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.
