Oven smells like burning even when nothing is cooking

Symptoms

• Burning smell when the oven is turned on empty
• Smoke visible from the bottom of the oven cavity
• Smell fades after the empty oven runs a while
• Distinct electrical or plastic smell rather than a food smell

Likely causes

• CommonFood spills or debris burning off the oven floor or elementsGrease and food residue from previous cooking can smoke and smell when reheated, especially at high temperatures.
• CommonFoil or a baking sheet liner touching the element or floorAluminum foil placed incorrectly can scorch or, in some cases, arc against an element.
• PossibleInsulation or wiring odor from a new or rarely used ovenA first-use or long-unused oven can produce a odd smell as materials heat up, distinct from a persistent electrical burning smell.
• Less commonElectrical component overheating or shortingAn acrid, electrical-type smell rather than a food-burning smell can indicate a wiring or component fault.

What to do

1. Check the oven floor and around the elements for visible food debris, grease, or spilled liquid.
2. Remove any foil, liners, or bakeware left in the oven, since these can scorch or interfere with elements.
3. Run the empty oven at 400–450F for 20–30 minutes with kitchen ventilation on to burn off remaining debris, watching for excessive smoke.
4. Clean the interior thoroughly with an oven-safe cleaner once cooled, focusing on the floor and corners.
5. If the smell is distinctly electrical, acrid, or accompanied by visible sparking, turn off the oven immediately and don't use it again yet.
6. Do not use foil to line the oven floor directly, since it can block airflow and contact elements.
7. Have a technician inspect the oven if you smell anything electrical or see sparking rather than a typical food-burning odor.

Tools and parts

• Oven-safe cleaner
• Cloth

When to call a pro

Have a technician inspect the oven for any electrical or acrid burning smell that isn't explained by food debris.

Safety