Appliance Repair
How to Fix a Dryer That's Not Heating
Your dryer tumbles, the timer runs, but clothes come out cold and damp. Before you pay a $150 service call, know this: the most common cause is a blown thermal fuse — a part that costs about $11 and takes 25 minutes to replace.
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What you'll need
⚠️ Safety firstUnplug the dryer before removing any panel. For gas dryers, shut the gas valve too. If you smell gas at any point, stop and call a pro.
Step-by-step fix
1
Unplug the dryer and pull it away from the wall
Safety first — and you'll need access to the back panel. For gas models, close the gas shutoff valve behind the machine.
2
Check the lint screen and exhaust vent
A clogged vent is the #1 cause of overheating that blows the thermal fuse. Vacuum the lint trap slot and detach the exhaust hose from the wall — pull out any packed lint.
3
Remove the back or lower panel
Usually 4–8 Phillips screws. The thermal fuse is a small white plastic part (about 2 inches) mounted on the blower housing or heating element case.
4
Test the thermal fuse with a multimeter
Set the meter to continuity. Touch a probe to each fuse terminal: no beep = blown fuse = your problem. This is the outcome in most no-heat dryers.
5
Replace the fuse (match the part number)
Snap a photo of the part label — the exact replacement is usually $8–$25 online or at an appliance parts store. Two screws, two wire connectors, done.
6
Test the heating element if the fuse was fine
Still no beep on the fuse means check the element coil the same way. Elements run $30–$60 and swap in with a few screws.
7
Reassemble, plug in, and run a timed-dry cycle
Feel for heat within 2–3 minutes. If you cleaned the vent, drying times should improve too.
When to call a pro instead
- You have a gas dryer and suspect the gas valve coils or igniter
- The drum isn't turning at all (motor or belt job)
- Wiring shows burn marks or melted connectors
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Common questions
Why does the thermal fuse keep blowing?
A blown fuse is almost always a symptom of a clogged exhaust vent. If you replace the fuse without clearing the vent, the new one will blow within weeks. Clean the full vent run to the outside wall.
How do I find my dryer's exact part number?
Scan the model sticker (inside the door frame) with SpotFix AI — the app identifies the exact thermal fuse, element, or thermostat for your model and where to buy it cheapest.
Is it worth fixing an older dryer?
If the fix is a $10–$60 part, almost always yes. A new dryer is $600+. SpotFix AI's severity rating tells you when a repair isn't worth it.
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