Dryer fires cause thousands of home fires every year in the U.S., and restricted airflow — from a clogged lint screen or a blocked exhaust vent — is consistently the leading cause. This isn’t a rare edge case; it’s one of the most common preventable home appliance hazards.
Why Lint Buildup Is So Dangerous
Lint is highly flammable, and a dryer’s heating element operates at high temperatures right next to it. When airflow is restricted, heat and lint-laden air have nowhere to go, raising the temperature inside the dryer and vent duct well beyond normal operating levels.
Warning Signs You Shouldn’t Ignore
Clothes taking multiple cycles to dry, the dryer or vent area feeling unusually hot to the touch, a burning smell during operation, or a E12 overheating error code are all signals 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. Don’t assume it will “work itself out” over another cycle.
Prevention Is Simple
Clean the lint screen every load and schedule a full vent cleaning annually. It’s one of the lowest-cost, highest-impact maintenance habits for any household. Visit our dryer repair page if you’re overdue for an inspection.
Not Confident Doing This Yourself?
A factory-trained technician can diagnose and fix it safely, usually same-day.