Why is my dryer not heating?
When a dryer runs but produces no heat, the most common culprits are a blown thermal fuse ($100 – $200 repaired), a failed heating element ($150 – $300), or a completely clogged exhaust vent — which is free to check yourself and is the root cause behind most fuse failures.
Gas and electric dryers fail differently: electric models almost always point to the element or fuse; gas dryers usually lose heat from a weak igniter or bad gas valve coils. Either way, a dryer that spins but doesn't heat is a targeted repair, not a replacement.
Most likely causes
Clogged exhaust duct
$0 – $170How to tellDrying times have gotten longer over months; laundry room feels humid during cycles; outside vent flap barely moves
The fixDisconnect the duct at the back of the dryer and clean the full run — DIY or a $100–$170 vent cleaning service
Thermal fuse blown
$100 – $200How to tellNo heat at all, often right after an unusually hot load or after duct was already restricted
The fixReplace the fuse and clear the vent that caused the overheat — skipping the vent means the new fuse blows again
Heating element burned out (electric)
$150 – $300How to tellDrum spins normally, air flows, but not even faint warmth — from the very first moment of the cycle
The fixReplace the element assembly — a common repair any tech knows quickly
Gas igniter or valve coils failed (gas)
$150 – $300How to tellGas dryer clicks trying to light but no flame holds, or heat quits partway through the cycle
The fixReplace the igniter or gas valve coil set — gas work should go to a pro
Cycling thermostat or high-limit thermostat bad
$125 – $250How to tellHeat is erratic — sometimes works, sometimes doesn't; loads come out half-damp
The fixReplace the faulty thermostat; often found during a tech diagnostic
Try this first (before you pay anyone)
- Pull the dryer away from the wall and disconnect the exhaust duct. Look inside — if you see packed lint, you found the root cause. Clear it and run a timed-dry cycle before calling anyone.
- Check the outside vent cap while the dryer is running. Weak or no airflow from the outside flap means the duct is blocked somewhere in the run.
- For electric dryers: check both breakers in your panel. Dryers use a double breaker (two poles). If one leg trips, the drum motor still runs but the heating element loses power — the dryer spins without heat.
- Make sure you're not in an Air Dry, Delicate, or Energy Saver mode — many dryers can run at very low or no heat on those settings and it's an easy miss.
Unlock the hiring checklist
Use this before you call an appliance repair, so you know what to ask and what to avoid.
Call a pro when…
- The exhaust duct is clear but there's still zero heat — element, fuse, and thermostat testing requires a multimeter and accessing internal panels
- It's a gas dryer and you smell anything — stop using it and call same-day
- The thermal fuse has blown more than once — something upstream (vent, thermostat, element) is still causing overheating
- The dryer trips the breaker when the heating cycle kicks in
Repair or replace?
Most dryers last 10–13 years. A thermal fuse or heating element repair on a dryer under 8 years old is almost always worth doing — you're spending $100–$300 to extend the life of a machine that costs $600–$1,200 new. Past 10 years, or if the repair quote exceeds half the cost of a comparable replacement (~$500–$900), put that money toward a new unit instead — that's the 50% rule, and a straightforward tech will tell you exactly which side you're on.
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Related questions
Why does my dryer run but not produce heat?
The drum motor and the heating circuit are completely separate systems. A failed thermal fuse, burned-out element, or clogged vent can knock out the heat while leaving the motor — and everything visible — running perfectly. That's why a no-heat dryer almost never needs full replacement.
How much does dryer repair cost when it won't heat?
Typically $100–$300 for parts and labor, depending on whether the issue is the thermal fuse, heating element, or thermostat. Most shops charge a $75–$150 diagnostic fee that gets credited toward the repair if you approve the work.
Can I fix a dryer that won't heat myself?
Cleaning the exhaust duct is a DIY job anyone can do — just disconnect the duct and clear it. Replacing a thermal fuse is moderate DIY if you're comfortable removing the back panel and using a multimeter. Heating element replacement is similar. If you'd rather not open the machine, it's a quick and inexpensive pro visit.
What's the difference between a thermal fuse and a heating element?
The thermal fuse is a one-time safety device — it blows permanently if the dryer overheats, cutting power to the heating circuit. The heating element is the coil that actually generates heat. A blown fuse means the dryer overheated; a failed element means the coil itself wore out. Both cause the same symptom (no heat) but are diagnosed with a multimeter.