Burning Smell from the Dryer? Here’s What to Do

1. Lint Buildup

Lint accumulation is the top culprit behind dryer burning odors.

If lint builds up inside the exhaust system, drum, or venting path, airflow suffers, leading to excessive heat buildup. Eventually, trapped lint ignites, creating that unmistakable burnt odor.

To avoid this danger, clean the lint screen after every load. Every few months, remove and vacuum the vent duct behind your dryer. Keeping airflow free prevents dangerous lint fires.

Yearly, schedule professional dryer maintenance to have a service technician visit your home and tune up the dryer to keep it in top shape. The tech will also open the dryer cabinet and vacuum lint out from around the drive motor and the burner or heating element to help prevent fires.

If your dryer exhaust vent system exhausts up through the roof or through a long run of ducting to the outside of your home, you’ll likely need to schedule professional dryer duct cleaning yearly to keep your dryer running safely and efficiently.

2. Overheating Due to Poor Ventilation

If your dryer overheats, it’s usually because airflow gets restricted. Blocked exhaust vents or kinked ducts trap hot air raising internal temperatures to unsafe levels. A clogged lint screen can also cause overheating.

Warning signs include longer drying cycles, excessively hot clothes, or the dryer shutting off mid-cycle.

Clean the lint screen before starting each load of laundry. Monthly, wash the lint screen in the sink using running water and a soft-bristled brush as shown in this video:

Regularly inspect and clean the exhaust vent. Ensure it's not crushed or kinked. For best performance, install rigid metal venting instead of plastic or foil ducts—they’re safer and last longer.

3. Shorted or Burned Electrical Wires

Burning smells from electrical shorts are serious business. Shorted wires create heat and sparks, risking fires or severe damage.

Listen carefully for buzzing sounds or watch for flickering lights and unexpected shutdowns. If you suspect electrical issues, stop using the dryer immediately. Have a professional inspect wiring connections and replace damaged wires right away.

4. Worn or Damaged Belt and Drive Components

Dryers rely on a drive belt and pulleys to turn the drum. When belt slips, wears out or jams, friction creates a distinct burnt rubber smell. If the smell gets stronger during cycles or you notice screeching or rumbling noises, check your belt and drive components.

Prompt belt replacement avoids bigger—and pricier—problems.

Here’s a video that shows how to replace the belt in a common type of clothes dryer:

Take Immediate Action for Dryer Safety

When your dryer smells like it’s burning, act swiftly. Delaying repairs risks serious damage and safety hazards.

Regular dryer maintenance and addressing problems immediately helps keep your dryer running smoothly, extending appliance life and protecting your home.

If you're not comfortable troubleshooting on your own, contact an appliance repair specialist. Sears Home Services technicians can quickly diagnose and resolve dryer problems, ensuring your home stays safe and laundry day remains stress-free.