Most dryer fires start with lint and blocked airflow. You can prevent most of them by cleaning the lint filter before every load, keeping the vent clear, and never running the dryer unattended.
The National Fire Protection Association (NFPA) identifies failure to clean the dryer as the leading contributing factor in dryer fires. Its fact sheet, based on 2010 to 2014 data, estimates about 15,970 home fires a year involve clothes dryers or washing machines.
Clean the lint filter before every load
Lint is flammable, and a full filter restricts the airflow that carries heat and moisture out of the drum.
- Pull the lint filter out before you start each load.
- Remove the lint with your fingers or a soft brush.
- If dryer sheets leave a film on the screen, wash it with warm water and mild soap. Let it dry completely before you put it back.
Clean the vent at least once a year
A blocked vent makes the dryer run hotter and take longer to dry. Dryer not drying? Read the vent checks.
- Unplug the dryer and pull it away from the wall.
- Disconnect the vent duct and look for lint or damage at both ends.
- Clean the duct with a dryer vent brush or a vacuum with a narrow hose.
- Clear lint from the exterior vent hood. The flap should open fully while the dryer runs.
- Reconnect the duct without kinks, and plug the dryer back in.
Clean the vent sooner if you notice clothes taking longer to dry, a hot laundry room, or a burning smell.
Use rigid or semi-rigid metal duct
Use rigid or semi-rigid metal duct. Plastic and thin foil accordion duct crush easily and catch lint, which blocks airflow.
Keep the duct run as short and straight as the installation instructions allow.
Avoid overloading the dryer
An overloaded drum strains the motor, and clothes that cannot tumble do not dry evenly. Dry bulky items such as comforters in smaller loads.
Do not dry items that are soaked. They take longer to dry and add moisture and lint to the vent.
Keep the area around the dryer clear
Keep boxes, cleaning supplies, and clothing away from the dryer. Clear space helps air circulate and makes it easier to clean the lint filter and vent.
Never run the dryer unattended
Turn the dryer off before you leave the house or go to sleep. Keep a fire extinguisher in the laundry room.
Keep children and pets away
The dryer gets hot and has moving parts. Keep the door closed when the dryer is not in use, and keep children and pets away from it while it runs.
Check the power connection
Plug the dryer into the outlet type and voltage that the manufacturer specifies.
Check the cord and plug for scorching, cracks, or loose connections. Do not use an extension cord with the dryer. Have a damaged cord or plug replaced before you use the dryer again.
Inspect the gas line on gas dryers
Have a qualified professional inspect the gas line and connection on a regular schedule.
Install a carbon monoxide alarm near a gas dryer, and test it as the manufacturer directs. If you smell gas, leave the house, turn off the gas supply if you can do so safely, and call SDG&E at 1-800-411-7343 from outside.
Stop using the dryer if you notice these signs
Stop the dryer, unplug it, and call a technician if you notice any of these signs:
- A burning smell or scorch marks
- A hot exterior or a hot laundry room during a cycle
- Unusual noises, such as grinding or squealing
- Clothes that stay damp after a full cycle
Frequently asked questions
How often should I clean the dryer lint filter?
Clean the lint filter before every load. Wash the screen if dryer sheets leave a film.
How often should the dryer vent be cleaned?
Clean the vent at least once a year. Clean it more often if the dryer runs every day, or if the vent run is long or has several bends.
What type of dryer vent should I use?
Use rigid or semi-rigid metal duct. Avoid plastic and thin foil accordion duct.
Can I run the dryer overnight?
No. Turn the dryer off before you go to sleep or leave the house.
What is the most common cause of dryer fires?
The NFPA identifies failure to clean the dryer as the leading contributing factor in dryer fires.
Book dryer repair in San Diego
Bonita Appliance Repair diagnoses dryers that run hot, will not dry, or smell of burning. A technician explains the repair and its price before any work begins.
