If your dryer tumbles but does not heat, start with safe airflow and setup checks before booking service.
Safe checks you can do now
- Clean the lint screen completely and retest a timed dry cycle.
- Check that the exterior vent flap opens freely when the dryer runs.
- Verify cycle settings are not on air-fluff or no-heat mode.
- For electric dryers, confirm both breakers are fully on.
Likely causes
- Restricted venting reducing heat efficiency
- Failed heating element or thermal fuse
- Igniter or gas-valve issue (gas models)
- Control board or thermostat fault
When to stop and call a pro
Do not open dryer panels or test live components. If there is no heat after basic checks, or you notice burning smells or repeated shutoff, schedule professional service.