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Error code reference

LG Oven Error Codes

26 error codes documented with diagnostic procedures.

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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 the oven…C-30The PCB temp sensor is open when the oven is operating, or PCB temperature rises…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 panel).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 cooking.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.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 cooking.F-8Upper temperature probe thermistor is shorted for over 1 minute after cook starts.F-9Upper oven does not heatH-3Lower bake heater error detected during self-diagnosis.H-4Lower broil heater error detected during self-diagnosis.

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Common questions

How do I find the error code on my LG Oven?
Most LG ovens show the code directly on the control panel display. If your model has no display, it can be read by entering diagnostic mode with the key sequence for your model. The full procedures include model-specific instructions for reading codes.
Are these codes specific to my model?
The codes here apply broadly to LG ovens. Meanings and diagnostic steps can vary by model and production year, so enter your model number for model-specific information and procedures.
What do I do if my code is not listed?
Some codes are model-specific or only appear in diagnostic mode. Enter your model number to get codes specific to your unit, or contact us. We update the database continuously from manufacturer service documentation.
How much does it cost to access the full diagnostic procedures?
A 3-day pass is $9.95 one-time and gives full access to all brands, codes, and procedures. Monthly access is $29/month with unlimited access to everything including Max AI diagnostics.