An oven that won't turn off is a fire hazard; shut off power at the breaker immediately and don't use the oven again until a professional repairs it.
Symptoms
- Oven stays hot or the element stays glowing after pressing off/cancel
- Display shows off but heat continues
- Oven won't respond to any button presses to stop it
- Temperature keeps climbing beyond the set point
Likely causes
- CommonStuck relay on the control boardA relay that fails in the closed position keeps sending power to the heating element regardless of commands.
- PossibleFailed door lock switch interfering with normal shutoff logic (self-clean models)A malfunctioning safety switch can sometimes interfere with normal cycle-ending behavior.
- PossibleControl board software faultA more general glitch can prevent the board from properly executing a stop command.
- Less commonWiring fault bypassing the control board's shutoff signalA direct short is less common but more serious than a relay failure.
What to do
- If the oven won't respond to the off or cancel button and continues heating, shut off power immediately at the breaker.
- Do not leave an oven that won't turn off unattended, even briefly.
- Once powered down, do not attempt to use the oven again until it's been repaired.
- Avoid repeatedly flipping the breaker on and off to test it, since this doesn't fix a stuck relay and risks a hazard each time.
- Note exactly what happened (heat continuing, no response to buttons) to relay to a technician.
- Have an appliance technician diagnose and replace the stuck relay or control board.
- Do not attempt to open or repair the control board yourself, since this involves high-voltage components.
Tools and parts
When to call a pro
This always requires a professional to diagnose and replace the stuck relay or control board; never attempt to bypass or force a shutoff yourself.
Safety
An oven that won't turn off is a fire hazard; shut off power at the breaker immediately and don't use the oven again until a professional repairs it.