How to Fix a Tumble Dryer Not Heating
Last updated: 30 September 2026
Check the heating element, thermal fuse, thermostat, and door switch.
Overview
A tumble dryer that does not heat leaves clothes damp and takes much longer to dry. This guide covers diagnosing and fixing heating issues.
Step-by-Step Fix
Before beginning any repair, ensure you have isolated power or water supplies. Clear your workspace, gather standard hand tools, and wear appropriate personal protective equipment (PPE).
- Turn off the tumble dryer at the wall socket and unplug it from the mains power. This is essential for your safety. Place a towel or cloth under the dryer to catch any debris or moisture during the repair.
- Remove the back panel of the tumble dryer. This is usually held by a few screws. Set the panel aside carefully. Access the heating element which is typically located at the back or bottom of the dryer.
- Inspect the heating element for visible damage. Look for breaks in the coil or signs of burning. Use a multimeter set to resistance to test the heating element. A reading between ten and fifty ohms indicates the element is functioning. An open circuit indicates a fault.
- If the heating element is faulty it must be replaced. Purchase a replacement element compatible with your tumble dryer model. Disconnect the old element and install the new one. Ensure all connections are secure.
- Test the thermal fuse with a multimeter on the continuity setting. The thermal fuse is a safety device that blows if the dryer overheats. If the fuse shows no continuity it has blown and must be replaced.
- Test the thermostat with a multimeter on the continuity setting. The thermostat regulates the temperature. If it is faulty the dryer may not heat or may overheat. Replace the thermostat if it shows no continuity.
- Check the door switch with a multimeter on the continuity setting. The door switch prevents the dryer from operating when the door is open. If the switch is faulty the dryer will not start or heat. Replace the switch if needed.
- Reassemble the tumble dryer ensuring all connections are secure and the back panel is replaced. Plug the dryer back into the mains power. Run a short cycle to test that the dryer heats correctly.
- If the dryer still does not heat after replacing the heating element and thermal fuse there may be a fault with the control board or the timer. These are more complex repairs that require a qualified appliance technician.
- To prevent future heating problems keep the lint filter clean. Clean the condenser if you have a condenser dryer. Check the vent for blockages. Have the dryer serviced every two to three years.
Common Symptoms & Diagnostic Resolutions
Review the common error codes and operating symptoms below to quickly identify the root cause of the fault before ordering replacement parts.
| Symptom / Code | Likely Root Cause | Recommended Resolution |
|---|---|---|
| Dryer runs but does not heat | Faulty heating element or thermal fuse | Test the heating element and thermal fuse. Replace faulty components. |
| Dryer does not start | Door switch faulty or no power | Check the power supply and test the door switch. Replace if faulty. |
| Dryer overheats | Thermostat faulty or blocked vent | Clean the vent and test the thermostat. Replace if faulty. |
| Dryer takes too long to dry | Restricted airflow or partially faulty element | Clean the lint filter and vent. Test the heating element for continuity. |
Frequently Asked Questions
Why is my tumble dryer not heating?
A faulty heating element a blown thermal fuse a faulty thermostat or a faulty door switch are the most common causes. Test each component with a multimeter to identify the problem.
Can I fix a tumble dryer that is not heating myself?
Yes for most cases. Testing and replacing the heating element thermal fuse and thermostat are manageable DIY tasks. If the control board is faulty call a technician.
How long do tumble dryer heating elements last?
Tumble dryer heating elements typically last five to ten years. The lifespan depends on usage and maintenance. Keeping the lint filter and vent clean extends the life of the heating element.
What is a thermal fuse in a tumble dryer?
A thermal fuse is a safety device that blows if the dryer overheats. Once blown it must be replaced. If the thermal fuse blows repeatedly there is an underlying overheating issue that needs investigation.