A dryer that runs but doesn’t heat is one of the most common dryer problems. It can be caused by airflow issues, electrical faults, or worn heating components.
Top reasons a dryer stops heating
- Clogged vent or restricted airflow: This is a major cause and a safety risk.
- Thermal fuse blown: Often happens due to overheating or blocked vents.
- Heating element failure (electric dryers): The element may burn out over time.
- Igniter or gas valve issue (gas dryers): If the igniter fails, the dryer won’t heat.
- Faulty thermostat or sensor: Can stop heat from cycling properly.
What you can do before booking repair
- Clean the lint trap thoroughly.
- Check the outside vent hood for airflow.
- Make sure the dryer is on the correct cycle settings (not “air fluff”).
- If safe to do so, inspect for crushed vent hoses behind the unit.
Why vent cleaning matters
A blocked dryer vent increases drying time, wastes energy, and can raise the risk of overheating. Regular vent inspection and cleaning helps keep your dryer efficient and safer.