Dryer Not Heating (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

If your dryer isn't heating, first ensure the power supply is correct and the thermal fuse is intact. Check the heating element and thermostat for damage, and replace any faulty parts.

Confirm the symptom

Clothes remain damp after a full cycle
Dryer runs but no heat is felt
Timer advances normally but no heat is produced

Tools and prep

Screwdrivers (flathead and Phillips)
Multimeter for testing electrical components
Owner's manual for part diagrams
Work light with clamp for visibility
Safety gloves and goggles
Empty laundry load to test after repairs

Step-by-step troubleshooting

Check Power Supply
Do: Verify the dryer is plugged in and the circuit breaker hasn't tripped.
Observe: Power indicator lights or motor running but no heat
Means: Power is available but heating system is not working
Next: Test thermal fuse
Test Thermal Fuse
Do: Unplug dryer, locate the thermal fuse, and test continuity with a multimeter.
Observe: Multimeter shows no continuity
Means: Thermal fuse is blown and needs replacement
Next: Replace thermal fuse
Inspect Heating Element
Do: Remove the back panel and visually check the heating element for breaks or damage.
Observe: Visible cracks or breaks in the element
Means: Heating element is faulty
Next: Replace heating element
Test Thermostat
Do: Unplug dryer, locate the thermostat, and test for continuity with a multimeter.
Observe: Multimeter shows no continuity
Means: Thermostat is defective
Next: Replace thermostat
Check Timer and Motor
Do: Test the timer and motor for proper operation using a multimeter.
Observe: No continuity in timer or motor
Means: Timer or motor is faulty
Next: Replace faulty component
Test Gas Valve Coil (Gas Dryers)
Do: For gas dryers, test the gas valve coil for continuity.
Observe: No continuity in the gas valve coil
Means: Gas valve coil is defective
Next: Replace gas valve coil

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 Cracks or breaks in the element prevent proper heat generation.	Common	Easy–Medium	Heating Element
Defective Thermostat A malfunctioning thermostat fails to regulate heat properly.	Sometimes	Easy	Thermostat
Tripped Circuit Breaker An overloaded circuit can cut power to the heating system.	Sometimes	Easy	None
Faulty Timer or Motor A defective timer or motor may not signal the heating system to activate.	Rare	Medium	Timer or Motor
Defective Gas Valve Coil (Gas Dryers) A faulty coil prevents gas from reaching the burner.	Rare	Medium	Gas Valve Coil

Parts matching

Common parts needed for a dryer not heating include:

Thermal Fuse
Heating Element
Thermostat
Timer
Gas Valve Coil (for gas dryers)

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

When to call a professional

If you're not comfortable working with electrical components
If the dryer is under warranty and disassembly may void it
If multiple parts are faulty and you're unsure which to replace first
If the issue persists after replacing all likely parts

FAQ

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

A clogged lint filter can reduce airflow and cause overheating, but it typically won't directly prevent the dryer from heating. However, it can lead to a blown thermal fuse, which would stop the heating element.

Is it safe to bypass the thermal fuse to test the dryer?

No, bypassing the thermal fuse is dangerous and can lead to overheating or fire. Always replace a blown thermal fuse immediately.

How often should I replace the thermal fuse?

Thermal fuses are one-time-use safety devices and should be replaced if they are blown. They typically last the life of the dryer if functioning properly.

Can a faulty dryer vent cause heating issues?

A blocked dryer vent can cause poor airflow and overheating, which may trigger the thermal fuse to blow. Ensure your vent is clear and properly installed.