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Error code reference
LG Washer Error Code TC4
Temperature sensor error-motor driver temperature in inverter PBA is too high, or IPM thermistor is open or shorted.
SourceLG WV55M9605MV Washer - Full Service Manualp. 33, 40
Diagnostic procedure
The full TC4 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
Upper washer: Replace MAIN PBA. Lower washer: Replace PBA inverter.
SourceLG WV55M9605MV Washer - Full Service Manualp. 33, 40
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
4 manuals in the MyPros+ library document this code for LG washer.
Models covered by the manuals that document this code
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