A dryer that needs two cycles to dry a load of towels might seem like an inconvenience. It is often a sign of restricted exhaust airflow, and the U.S. Fire Administration identifies failure to clean dryers as a leading contributing factor in home dryer fires. The good news is that most prevention is simple.
Warning Signs
- Loads take noticeably longer to dry.
- The top of the dryer or the laundry room feels unusually hot.
- A burning or hot-dust smell while the dryer runs.
- The outside vent flap barely opens, or you find lint around the exterior opening.
If you notice a burning smell, stop the dryer and do not run it again until it is inspected.
Habits That Matter
- Clean the lint screen before or after every load.
- Wash the lint screen occasionally with warm soapy water if dryer sheets leave a film that blocks airflow. Dry it before reinstalling.
- Do not leave the dryer running when nobody is home or while everyone is asleep.
- Keep the area around the dryer clear of boxes, cleaning products and clothing.
The Vent Itself
Use rigid or semi-rigid metal duct rather than plastic or foil accordion duct, which sags and traps lint. Keep runs as short and straight as the installation allows. Have the full duct run cleaned periodically, especially if it is long or has several bends. Pulling a dryer away from the wall can strain the power cord and duct connection; with a gas dryer it can also damage the gas connector, so leave moving a gas dryer to a qualified professional.
After Cleaning
If drying times are still long after the vent is clear, the dryer may have a heating, sensor or airflow component issue inside the cabinet. Book a dryer repair visit rather than continuing to run extra cycles.

