On the covered LG dehumidifier, CH 02 means electronic abnormalities, such as a humidistat or main board issue — LG's own wording, the same description LG gives for CH 01 and CH 03. First, record which of CH 01, CH 02 and CH 03 is displayed.
Try in this order
0 of 4 completedWhat to do first
ReversibleRecord which of CH 01, CH 02 and CH 03 is displayed.
Correct only the documented fault domain
ReversibleUnplug the dehumidifier for 20 seconds to reset it, then restore power.
Unplug for 20 seconds
ReversibleLG's help library for the dehumidifier error list says to unplug the unit for 20 seconds, then restore power.
Book service if it returns
ReversibleCH01, CH02 and CH03 are all listed as electronic abnormalities such as the humidistat or main board; if the code comes back after the reset, the unit needs repair.
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Exact questions
Common questions about “LG dehumidifier code CH 02”
What does CH 02 mean on a LG dehumidifier?+
electronic abnormalities, such as a humidistat or main board issue — LG's own wording, the same description LG gives for CH 01 and CH 03.
Is CH02 the same on an LG air conditioner?+
No. LG's room air conditioners use CH02 for other faults, so use the dehumidifier list for a dehumidifier.