Dryer Not Heating: Causes and What to Do
A dryer that runs but does not heat usually has a blown thermal fuse, a failed heating element or cycling thermostat on electric models, or a bad igniter or gas valve coils on gas models. A clogged vent often causes the fuse to blow. Clean the lint screen and vent first, then call a technician.
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Last updated October 2026No heat is the most common dryer complaint. It is also a safety signal, because overheating from a clogged vent is a leading cause of dryer fires.
Quick checks to try first
- Clean the lint screen.
- Pull the dryer out and check the vent hose for crushing or lint.
- Go outside and make sure the vent flap opens when the dryer runs.
- For electric dryers, check both breakers; many need a double breaker.
- For gas dryers, make sure the gas valve behind the dryer is open.
- Try a short timed-dry cycle on high heat.
Safety first
Call a pro when
- The dryer still has no heat after cleaning
- You smell burning
- You smell gas
- The breaker trips
What is causing it?
Match what you see to the likely cause.
| Symptom | Likely cause | DIY or pro? |
|---|---|---|
| Runs, no heat (electric) | Thermal fuse or heating element | Pro |
| Runs, no heat (gas) | Igniter or gas valve coils | Pro |
| Heats a little, takes two cycles | Clogged vent or weak element | DIY vent first |
| Heat on and off | Cycling thermostat | Pro |
| Very hot cabinet | Blocked vent | DIY vent, then pro |
| No heat after a vent clog | Blown thermal fuse | Pro |
Checks did not fix it?
Call 1-833-563-1092. Have your ZIP code ready.
Step-by-step troubleshooting
- Clean the lint screen.
- Clear the vent line.
- Check the breakers or gas valve.
- Run a short test cycle.
- If it still does not heat, stop using it and call a technician.
What is going on inside?
An electric dryer heats air with a coiled heating element. A gas dryer lights a burner with an igniter that opens a gas valve. In both, a set of thermostats and a thermal fuse protect the dryer from overheating. When airflow is blocked by lint, the dryer gets too hot, the fuse blows and the heat stops, even though the drum keeps turning.
How do I stop it happening again?
- Clean the lint screen before every load.
- Have the full vent line cleaned regularly.
- Use rigid or semi-rigid metal vent duct.
- Keep the outside vent flap clear of lint, snow and nests.
- Do not overload the drum.
How much does it cost to fix?
Fixr puts most dryer repairs between $100 and $200, with a national average of about $150. A service call fee of about $50 to $100 is common, and many providers apply it to the repair. See the full cost guide.
What should I tell the technician?
- Gas or electric
- Whether there is no heat or only weak heat
- When the vent was last cleaned
- Any burning smell
- The dryer's brand, age and model number
Then call 1-833-563-1092 and give your ZIP code so your call reaches a provider near you.
Common questions
Why does my dryer run but not heat?
On electric dryers it is usually the thermal fuse, heating element or thermostat. On gas dryers it is usually the igniter or gas valve coils.
Can a clogged vent stop a dryer from heating?
Yes. A clogged vent makes the dryer overheat, which can blow the thermal fuse and cut the heat.
How much does it cost to fix a dryer that is not heating?
Fixr puts heating element replacement at $150 to $350 and gas igniter replacement at $100 to $250.
Is a dryer that is not heating dangerous?
It can be, especially if overheating from lint is the cause. Stop using it until it is checked.
Can I replace a dryer thermal fuse myself?
On many electric dryers it is a simple part, but the fuse blew for a reason. Clear the vent and have the cause checked, or the new fuse may blow too.
How often should a dryer vent be cleaned?
Clean the lint screen every load. Many manufacturers and fire safety groups suggest having the full vent cleaned at least once a year.
Get it fixed
Call 1-833-563-1092 to speak with a local appliance repair pro.
1-833-563-1092Free referral service. Have your ZIP code ready.