Quick Answer
If your dryer is not heating, check the cycle setting, lint screen, load size, exterior vent airflow, breaker, and gas valve first. A dryer may tumble with no heat because of a clogged vent, blown thermal fuse, failed heating element, weak gas igniter, bad gas coils, thermostat issue, motor problem, timer, or control board. Stop using it if you smell burning, smell gas, or the breaker trips.
Symptoms at a Glance
Dryer runs but clothes stay wet
Likely cause: Weak heat, blocked airflow, oversized load, or failed heating part.
Homeowner action: Clean the lint screen and check outside airflow.
No heat at all
Likely cause: Heating element, thermal fuse, gas igniter, gas coils, or power issue.
Homeowner action: Check settings and breaker once.
Heats briefly then cools
Likely cause: Restricted vent, gas coil failure, thermostat issue, or overheating protection.
Homeowner action: Stop repeated cycles and inspect airflow.
Clothes are hot but damp
Likely cause: Poor airflow, overloaded drum, clogged duct, or moisture sensor issue.
Homeowner action: Reduce load size and clear lint.
Burning smell
Likely cause: Lint near heat, failing motor, overheated wiring, or blocked vent.
Homeowner action: Turn the dryer off and schedule service.
Breaker trips
Likely cause: Shorted element, motor fault, wiring issue, or overloaded circuit.
Homeowner action: Do not keep resetting the breaker.
Repair Difficulty Meter
DIY difficulty: Low for settings, lint screen, load size, and exterior airflow checks.
Estimated time: 10-30 minutes for safe external checks.
Tools needed: Flashlight, vacuum, lint brush, towel, and owner's manual.
Safety risk: Moderate to high because dryers use heat, electricity, moving parts, lint, and, on gas models, fuel.
When to call a professional: Call when heat does not return, the dryer smells hot, the breaker trips, gas ignition fails, or cabinet disassembly is needed.