WHAT CAUSES CLOTHES DRYER FIRES
Clothes dryers must vent hot air from the dryer to the outside of the house. Lint becomes detached from the clothes and is carried out through the exhaust. If lint builds up in the exhaust pipe or inside the dryer, it slows the air movement through the dryer. This causes more lint to collect on the backside of the dryer drum, on the dryer motor, or on the electrical connections inside the dryer, placing the highly combustible lint on top of and adjacent to heat sources inside the dryer.