F12
Electrolux
Communication error between display and control board
Oven displays F12, may not respond to commands
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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 user interface board and main EOC, Failed user interface (UI) board, Failed main control board, Power surge damage
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker before accessing internal controls.
- Power cycle: Turn off power for 5 minutes, then restore. If F12 returns, proceed with inspection.
- Inspect harness: Remove the control panel and locate the wiring harness between the UI/display board and the main EOC. Reseat all connectors and check for bent pins or corrosion.
- Check for damage: Look for burnt components or cracked solder joints on both boards.
- Board substitution: If available, replace the UI board first (often less expensive). If the error persists, replace the main EOC.
- Secure wiring: Ensure all harnesses are routed away from sharp edges and high-heat areas before reassembly.
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Repair Difficulty
Hard
4/5
Required Part
User Interface (UI) Board or Electronic Oven Control Board (EOC)
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