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Error code reference
LG Range Error Code C-31
PCB temperature sensor shorted.
SourceElectric Range NE59*685*** - Service Manualp. 36
Diagnostic procedure
The full C-31 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
Disconnect power, open back cover, remove PCB Main from holder, measure NTC sensor (located on backside of PCB) resistance (3.8KΩ at room temperature); if this code was displayed, need to replace PCB.
SourceElectric Range NE59*685*** - Service Manualp. 36
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 range.
Models covered by the manuals that document this code
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