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LG Oven Error Codes
26 error codes for LG oven models. Each links to the full diagnostic procedure from the service manual.
CodeDescription
bAd LinEPower connection is installed improperly.C-20The oven sensor is open or shorted when the oven is operating.C-21The internal temperature rises abnormally high, or oven sensor is shorted when…C-30The PCB temp sensor is open when the oven is operating, or PCB temperature…C-31The PCB temp sensor is shorted when the oven is operating.C-A2Cooling motor is operating abnormally.C-d0Keys are shorted on the keypad.C-d1Door lock is mispositioned or internal temperature rises abnormally high.C-F0Communication between the Main and Sub PCB is interrupted.C-F2Communication between the Main and Sub PCB is interrupted (ribbon cable/touch…F-1Upper oven thermistor remains open for over 1 minute after cook starts.F-10Upper Oven door lock failureF-11Communication error between user interface and main PCB for over 10 seconds.F-12EEPROM error for My Menu.F-16Lower oven temperature is over 650°F/343°C continuously during 2 minutes while…F-19Lower oven does not heatF-2Upper oven thermistor is shorted for over 1 minute after cook starts.F-20Lower Oven door lock failureF-3Touch sensor key errorF-4Lower oven thermistor remains open for over 1 minute after cook starts.MyPros+ Max
Get the full diagnostic procedure for any LG oven error code.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts
- Verified part numbers when replacement is required
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F-5Lower oven thermistor is shorted for over 1 minute after cook starts.F-6Upper oven temperature is over 650°F/343°C continuously during 2 minutes while…F-8Upper temperature probe thermistor is shorted for over 1 minute after cook…F-9Upper oven does not heatH-3Lower bake heater error detected during self-diagnosis.H-4Lower broil heater error detected during self-diagnosis.