Restricted airflow, from a clogged lint trap or a blocked exhaust vent, is consistently the leading cause of home dryer fires. This isn’t a rare edge case — it’s one of the most common preventable appliance hazards.
Why Lint Buildup Is So Dangerous
Lint is highly flammable, and a dryer’s heating element operates right next to it. When airflow is restricted, heat and lint-laden air have nowhere to go, raising temperatures inside the dryer and duct well beyond normal levels.
Warning Signs You Shouldn’t Ignore
Clothes needing multiple cycles to dry, the dryer or vent area feeling unusually hot, or a burning smell during operation all signal that airflow is restricted enough to warrant immediate attention.
What to Do If You Smell Burning
Stop the dryer immediately, unplug it or switch it off at the breaker, and don’t run it again until it’s been inspected.
Prevention Is Simple
Clean the lint trap every load and schedule a full vent cleaning annually. Visit our dryer repair page if you’re overdue for an inspection.