F12
Dacor
Communication or configuration error between display and main control
Dacor oven shows F12 and may not start; display may be blank or partially lit.
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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
Incorrect or corrupted control configuration, Loose harness between display and EOC, Failed display board, Failed main control board
How to Fix / Troubleshooting
Safety first: Disconnect power at the breaker before accessing internal controls.
- Power reset: Turn off power for 10 minutes, then restore. Sometimes F12 clears after a full reset.
- Check harness: Access the control area and inspect the wiring between the display/UI board and the main control. Reseat all connectors and look for bent pins.
- Configuration check: Some Dacor models require configuration codes to be set on the control board after replacement. If the error appeared after a board change, verify that the correct model configuration has been entered per the service manual.
- Replace faulty board: If wiring is intact and configuration is correct, replace the display/UI board first. If the issue persists, replace the main control board.
Warning: Incorrect configuration can cause improper heating or unsafe operation. Follow Dacor documentation carefully.
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Repair Difficulty
Hard
4/5
Required Part
Display / User Interface Board
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