La Cornue Stuck Light Circuit or Door Switch Fault

Oven light stays on continuously even when door is closed and light button is off.

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.

Possible Causes

Stuck door switch, Welded light relay on control board, Shorted light switch on control panel, Misaligned door not actuating switch

Safety first: Disconnect power before testing switches or relays.

1. Check door closure: Ensure the door closes fully and presses the door switch plunger (if visible). Adjust hinges if needed.
2. Test door switch: Access the switch and test continuity with a multimeter. It should change state when pressed. Replace if stuck closed.
3. Control relay: If the switch is good, the light relay on the control board may be welded closed. Replace the control board if it continuously supplies power to the lamp.

Medium 3/5

Oven Door Switch

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