F12
Stoves
Communication error between display and power/control module
Oven displays F12; may not start any cooking functions.
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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
Loose harness between display board and main control, Failed display board, Failed main control board, Power supply instability
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker before accessing internal components.
- Check harness connections: Remove the control panel and locate the wiring harness between the display board and the main control. Reseat all connectors firmly.
- Inspect for damage: Look for pinched wires, burn marks, or corrosion on connectors. Repair or replace damaged harnesses.
- Test power supply: With power restored (exercise caution), verify that the control board is receiving correct line voltage and low-voltage outputs to the display. If voltages are missing, replace the main control.
- Replace faulty board: If wiring and power are good, replace the display board or main control board as indicated by your model's service documentation.
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Repair Difficulty
Hard
4/5
Required Part
Electronic Oven Control Board
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