A burning smell from a dryer should not be ignored. Lint buildup, trapped fabric, overheating, or an electrical component can cause the odor; stop the cycle and find the cause before using the dryer again.
Stop the dryer and let it cool
Turn the dryer off and unplug it if that can be done safely. If there is smoke, flame, or a hot receptacle, move away and use appropriate emergency services rather than continuing to inspect it.
Clean the lint filter and check airflow
A lint-coated filter and restricted vent raise operating temperature and drying time. Clean the filter, check that the exterior flap opens, and do not run the dryer if airflow is weak or the duct is obstructed.
Look for trapped material only in accessible areas
Check the drum, door seal, and lint-filter area for small garments, plastic, or debris that could contact hot surfaces. Do not remove panels or reach toward energized internal components.
Electrical or recurring odor requires service
If the smell returns with clear airflow, or smells like burning wire, plastic, or rubber, leave the dryer out of service. The belt, motor, wiring, or heater may need professional inspection.
Sources
- U.S. Consumer Product Safety Commission — Clothes Dryer Safety — Clothes-dryer fire prevention, lint removal, and exhaust-vent maintenance.