Quick answer
If your dryer isn't heating, start by checking the power supply and circuit breaker. Ensure the dryer is plugged in and receiving power. Inspect the heating element for any visible damage. If necessary, replace the faulty heating element following safety guidelines.
Confirm the symptom
- Dryer tumbles but doesn't heat.
- Clothes take much longer to dry.
- Dryer makes unusual noises when trying to heat.
- Dryer displays error codes related to heating.
- Dryer shuts off unexpectedly during cycle.
Tools and prep
- Screwdriver (Phillips and flathead)
- Multimeter
- Work gloves
- Safety glasses
- User manual for your dryer model
- Ensure the dryer is unplugged before starting any work
- Clear the area around the dryer for easy access
Step-by-step troubleshooting
- Access the Heating ElementDo: Unplug the dryer and move it away from the wall.Observe: Locate the heating element, usually at the back or bottom of the dryer.Means: Remove the back panel or front panel (depending on your model) using a screwdriver.Next: Inspect the heating element.
- Inspect the Heating ElementDo: Look for any visible signs of damage, such as burns or breaks.Observe: Check for continuity using a multimeter. Set the multimeter to the ohms setting and touch the probes to the terminals of the heating element.Means: A reading of infinity or no reading indicates the heating element is faulty.Next: Check the thermal fuse.
- Check the Thermal FuseDo: Locate the thermal fuse, usually a small, white, cylindrical component near the heating element.Observe: Test the thermal fuse with a multimeter for continuity.Means: If there is no continuity, the thermal fuse is blown and needs replacement.Next: Replace the faulty component.
- Replace the Faulty ComponentDo: Purchase a replacement heating element or thermal fuse that matches your dryer model.Observe: Follow the manufacturer's instructions to install the new part.Means: Ensure all connections are secure and the new part is properly installed.Next: Reassemble the dryer.
- Reassemble the DryerDo: Replace the panels you removed earlier.Observe: Ensure all screws are tightened securely.Means: Move the dryer back into place and plug it in.Next: Test the dryer.
- Test the DryerDo: Run a test cycle to ensure the dryer heats properly.Observe: Monitor the dryer for any unusual noises or error codes.Means: If the problem persists, consult a professional.Next: N/A
Common causes
| Cause | Likelihood | Difficulty | Part often needed |
|---|---|---|---|
| Faulty Heating Element The heating element can burn out over time due to wear and tear. | Common | Medium | Heating Element |
| Blown Thermal Fuse The thermal fuse protects the dryer from overheating and can blow if the dryer gets too hot. | Common | Easy–Medium | Thermal Fuse |
| Broken Heating Element Relay The relay controls the power to the heating element and can fail over time. | Sometimes | Medium | Heating Element Relay |
| Faulty Thermostat The thermostat regulates the temperature and can malfunction, preventing the dryer from heating. | Sometimes | Medium | Thermostat |
| Power Supply Issues Insufficient power or a faulty outlet can prevent the dryer from heating. | Sometimes | Easy | N/A |
| Control Board Failure The control board manages the dryer's functions and can fail, causing heating issues. | Rare | Hard | Control Board |
Parts matching
Ensure you have the correct parts before starting repairs. Match the part numbers with your dryer model for a perfect fit.
- Heating Element: Replace if burned out or broken.
- Thermal Fuse: Replace if blown due to overheating.
- Heating Element Relay: Replace if faulty.
- Thermostat: Replace if malfunctioning.
- Control Board: Replace if failed.
Always refer to your dryer's user manual for specific part numbers and compatibility.
When to call a professional
- If you're not comfortable working with electrical components.
- If the dryer continues to malfunction after replacing the heating element.
- If you encounter complex wiring or control board issues.
- If the dryer displays error codes you don't understand.
- If you suspect a gas leak (for gas dryers).
FAQ
How do I know if my heating element is bad?
Use a multimeter to test for continuity. If there is no continuity, the heating element is faulty.
Can I replace the heating element myself?
Yes, if you follow safety guidelines and have the right tools. However, if you're unsure, consult a professional.
What causes a thermal fuse to blow?
A thermal fuse blows due to excessive heat, often caused by a blocked vent, faulty heating element, or other overheating issues.
How often should I clean my dryer vent?
Clean your dryer vent at least once a year to prevent lint buildup and ensure proper airflow.