Dryer Not Heating Up But Runs (Troubleshooting Guide)

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Quick answer

Check the thermal fuse and heating element first. If they're faulty, replace them. Ensure the gas valve is open for gas dryers.

Check Power Supply
Do: Verify the dryer is plugged in and the circuit breaker hasn't tripped.
Observe: Dryer runs but no heat
Means: Power is present but heating circuit is not working
Next: Check thermal fuse
Check Thermal Fuse
Do: Use a multimeter to test the thermal fuse for continuity.
Observe: No continuity indicates a blown fuse
Means: Thermal fuse is faulty
Next: Replace thermal fuse
Inspect Heating Element
Do: Unplug the dryer and remove the back panel to access the heating element.
Observe: Burned or broken element
Means: Heating element is damaged
Next: Replace heating element
Test Gas Valve Solenoid (Gas Dryers)
Do: Check the gas valve solenoid for continuity using a multimeter.
Observe: No continuity means the solenoid is faulty
Means: Gas valve solenoid needs replacement
Next: Replace gas valve solenoid
Check Thermostat
Do: Test the thermostat with a multimeter for continuity.
Observe: No continuity indicates a faulty thermostat
Means: Thermostat is not working
Next: Replace thermostat
Inspect Gas Supply (Gas Dryers)
Do: Ensure the gas valve is fully open and there's no blockage in the gas line.
Observe: Gas flows freely
Means: Gas supply is adequate
Next: Check for other issues

Cause	Likelihood	Difficulty	Part often needed
Blown Thermal Fuse Overheating or lint buildup can blow the thermal fuse.	Common	Easy	Thermal fuse
Faulty Heating Element A damaged or burned-out heating element won't generate heat.	Common	Easy–Medium	Heating element
Faulty Thermostat A malfunctioning thermostat can prevent the heating element from activating.	Sometimes	Medium	Thermostat
Gas Valve Solenoid Issue (Gas Dryers) A faulty solenoid prevents gas from reaching the burner.	Sometimes	Medium	Gas valve solenoid
Blocked Gas Line (Gas Dryers) A closed or blocked gas line stops gas flow to the dryer.	Rare	Easy	Gas line inspection
Faulty Igniter (Gas Dryers) A cracked or worn igniter won't ignite the gas.	Sometimes	Medium	Igniter

Common parts needed for a dryer not heating up but runs:

Always refer to your dryer's manual for specific part numbers and compatibility.

Can a clogged lint filter cause a dryer not to heat?

No, a clogged lint filter affects airflow but not the heating element or gas valve.

How do I know if my thermal fuse is blown?

Use a multimeter to test for continuity. No continuity means the fuse is blown.

Is it safe to replace the heating element myself?

Yes, if you follow the manual and take proper safety precautions. Otherwise, call a professional.

Why does my gas dryer click but not ignite?

A faulty igniter or gas valve solenoid is likely the cause. Test both components.