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Error code reference
LG Heat Pump Error Code CH67
BLDC motor fan lock (outdoor): fan motor breakdown, poor contact, or obstruction.
SourceLG AH Series Heat Pump - Service Manualp. 81
Diagnostic procedure
The full CH67 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 if outdoor fan is locked by obstruction; check connection between PCB and fan motor; check DC motor signal; replace motor or PCB as needed.
SourceLG AH Series Heat Pump - Service Manualp. 81
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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