Toaster oven not heating

Symptoms

• Oven powers on, light comes on, but no heat is produced
• Food stays cold or takes far longer than expected
• Heating elements don't glow orange when they should
• Oven trips the breaker when turned on

Likely causes

• CommonFailed heating elementElements burn out after years of use, similar to a light bulb failing.
• CommonIncorrect setting selected (like toast instead of bake)Some settings only activate certain elements, which can seem like a failure.
• PossibleTripped circuit breaker or blown fuse in the home panelToaster ovens draw significant current and can trip a shared circuit.
• PossibleFaulty thermostat or temperature sensorA bad sensor may prevent the element from ever engaging.
• Less commonFailed control board or timerElectronic failures are less common but possible in newer models.

What to do

1. Confirm the correct function is selected (bake, toast, broil) since some only heat certain elements.
2. Check that the door is fully closed, since many models won't heat with the door open or not latched.
3. Look inside while running a cycle (without touching anything) to see if either the top or bottom element glows orange; note which one, if any, fails to heat.
4. Check your home's circuit breaker if the oven doesn't power on at all.
5. Unplug for a few minutes and plug back in to reset any internal fault.
6. If elements don't glow at all despite correct settings and a working outlet, the heating element or thermostat has failed and typically isn't cost-effective to repair.

Tools and parts

When to call a pro

Heating element replacement is possible on some models but often costs close to a new unit; replacement is usually the practical choice.

Safety