E12
Midea
Auxiliary Circuit / Low-voltage Error
Oven displays E12, and the interior light or auxiliary functions fail.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Shorted oven cavity light, shorted light wiring harness, failed low-voltage regulator on the main control board, moisture ingress into the control area.
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker.
Check oven light circuit:
- Remove the glass cover over the oven lamp and take out the bulb.
- Inspect the bulb for filament breaks or shorts; replace with the correct Midea-specified oven bulb.
- Inspect the lamp holder for signs of arcing or melting.
Inspect wiring and control:
- Access the rear of the oven and inspect the light wiring harness for pinched or burnt wires.
- Dry any visible moisture around the control board and connectors.
- If replacing the bulb and checking the wiring does not clear E12, the main control board's low-voltage section may be damaged and require replacement.
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Repair Difficulty
Medium
3/5
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