Dryer Won't Heat Up or Dry Clothes (Troubleshooting Guide)

On this page

Quick answer
Confirm the symptom
Tools and prep
Step-by-step troubleshooting
Common causes table
Parts matching
When to call a pro
FAQ
Related guides

Quick answer

Check the dryer's thermal fuse, heating element, and gas valve. Ensure proper power supply and venting. Replace faulty parts as needed.

Confirm the symptom

Dryer runs but clothes remain damp
No heat coming from the dryer
Clothes take excessively long to dry
Dryer makes noise but doesn't heat
Vent feels cool or has no airflow

Tools and prep

Multimeter for testing electrical components
Screwdrivers (flathead and Phillips)
Owner's manual for dryer model
Work gloves and safety glasses
Clean lint brush and vacuum
Electrical tape and replacement parts if needed
Ensure dryer is unplugged or gas is off before starting

Step-by-step troubleshooting

Check Power and Gas Supply
Do: Verify the dryer is plugged in and the circuit breaker hasn't tripped. For gas dryers, ensure the gas valve is open.
Observe: Dryer has power and gas flow.
Means: Power and gas are not the issue.
Next: Test the thermal fuse.
Test the Thermal Fuse
Do: Use a multimeter to test the thermal fuse for continuity. Locate it near the dryer drum or heating element.
Observe: Multimeter shows no continuity.
Means: Thermal fuse is blown and needs replacement.
Next: Replace the thermal fuse.
Inspect the Heating Element
Do: Unplug the dryer and remove the back panel. Check the heating element for visible damage or burn marks.
Observe: Heating element is broken or burned out.
Means: Heating element needs replacement.
Next: Replace the heating element.
Check the Gas Valve Coil
Do: For gas dryers, test the gas valve coil with a multimeter for continuity.
Observe: No continuity in the gas valve coil.
Means: Gas valve coil is faulty and needs replacement.
Next: Replace the gas valve coil.
Clean the Vent and Lint Trap
Do: Remove lint from the lint trap and clean the vent duct with a brush and vacuum.
Observe: Vent is clear and airflow is restored.
Means: Clogged vent was causing poor drying.
Next: Test the dryer again.
Test the Dryer Operation
Do: Plug in the dryer and run a test cycle. Monitor for heat and proper drying.
Observe: Dryer heats and dries clothes normally.
Means: Issue is resolved.
Next: Complete

Common causes

Cause	Likelihood	Difficulty	Part often needed
Blown thermal fuse Overheating or lint buildup can cause the thermal fuse to blow as a safety measure.	Common	Easy	Thermal fuse
Faulty heating element A broken or burned-out heating element cannot generate heat.	Common	Easy–Medium	Heating element
Clogged vent or lint trap Restricted airflow from lint buildup prevents proper drying.	Common	Easy	N/A
Tripped circuit breaker A tripped breaker cuts power to the dryer.	Sometimes	Easy	N/A
Faulty gas valve coil A failed gas valve coil prevents gas flow in gas dryers.	Sometimes	Medium	Gas valve coil
Defective thermostat A malfunctioning thermostat can't regulate heat properly.	Rare	Medium	Thermostat
Wiring issues Loose or damaged wiring interrupts power to heating components.	Rare	Hard	Wiring kit

Parts matching

Common parts needed for this issue include:

Thermal fuse for your dryer model
Heating element compatible with your dryer
Gas valve coil for gas dryers
Replacement thermostat
Wiring harness if electrical issues are found

Always refer to your dryer's manual to ensure part compatibility.

When to call a professional

You're uncomfortable working with electrical or gas components
The dryer still doesn't heat after replacing all common parts
You smell gas or notice gas leaks
You hear unusual noises after repairs
The dryer's control panel displays error codes not covered here
You're unsure about the cause after following all steps

FAQ

How often should I clean my dryer vent?

Clean your dryer vent at least once a year, or more frequently if you dry heavy lint-producing fabrics.

Can a clogged lint trap cause a dryer to stop heating?

A clogged lint trap can prevent proper airflow but typically doesn't stop heating. However, it can cause overheating and trip the thermal fuse.

Is it safe to bypass the thermal fuse temporarily?

No, bypassing the thermal fuse is dangerous and can cause a fire hazard. Always replace it if faulty.

Why does my electric dryer not heat but the motor runs?

This is often due to a faulty heating element or a blown thermal fuse.

Can a bad dryer vent cause a fire?

Yes, a clogged vent can overheat and ignite lint buildup, causing a fire. Regular cleaning is essential.