F14
La Cornue
Start Circuit / Safety Interlock Fault
Clock and timer work, but oven will not start any cooking cycle; pressing Start does nothing.
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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
Child lock or safety mode enabled, Faulty Start button on touch panel, Defective user interface board, Door switch not recognized as closed
How to Fix / Troubleshooting
Safety first: Disconnect power before removing the control panel if hardware inspection is needed.
- 1. Check child lock: Refer to the La Cornue user manual to see if a key lock or child safety mode is active. Disable it using the specified button combination.
- 2. Verify door closure: Ensure the oven door is fully closed and that the door switch (if equipped) is being actuated. A misaligned door can prevent the oven from starting.
- 3. Test Start button: If the oven uses a touch panel, press other buttons to see if they respond. If only the Start button is unresponsive, the touch membrane or UI board may be faulty and require replacement.
- 4. Power reset: Turn off the breaker for several minutes and restore power to clear any software lockup.
- 5. Inspect UI connections: Remove the control panel and reseat the ribbon cable between the UI and main control board.
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Repair Difficulty
Medium
3/5
Required Part
User Interface Control Panel
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