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Error code reference
LG Air Conditioner Error Code CH38
Refrigerant leakage detection (alternate code for CH36).
SourceLG Wall Mounted Air Conditioner - Service Manual: General Inverter Typep. 28, 67
Diagnostic procedure
The full CH38 procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check connection status of pipe; check pipe break/damage; check indoor/outdoor heat exchangers; check compressor leakage; check EEV body clogging.
SourceLG Wall Mounted Air Conditioner - Service Manual: General Inverter Typep. 28, 67
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Where this code is documented
1 manual in the MyPros+ library documents this code for LG air conditioner.
Models covered by the manuals that document this code
75,000+ service documents · 20,000+ error codes · 100+ brands
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