The most common cause of a dryer that tumbles but doesn’t heat is a blown thermal fuse, and the most common reason that fuse blew in the first place is a clogged vent restricting airflow. Before assuming you need a replacement heating element, work through the checks below in order. They’re ranked from most to least likely based on how these cases typically resolve.
This page is part of our full dryer troubleshooting guide. If your dryer heats but just takes forever to finish a cycle, see our takes too long to dry guide instead, since the two symptoms often share the same root cause but aren’t the same problem.
Quick Diagnosis Table
| Cause | Likelihood | Difficulty | Typical Part Cost |
|---|---|---|---|
| Blown thermal fuse | Very likely | Easy to moderate | $10–20 |
| Clogged lint filter or exhaust vent | Very likely | Easy (no tools) | $0 — cleaning only |
| Failed heating element (electric) | Likely | Moderate | $30–90 |
| Faulty igniter or gas valve solenoid (gas only) | Likely on gas models | Professional recommended | $20–80 in parts |
| Broken cycling thermostat | Possible | Moderate | $15–40 |
| Tripped breaker or one dead leg of a 240V circuit | Possible | Easy to check | $0 |
| Faulty timer or control board | Rare | Professional recommended | $80–200+ |
Repair or Replace?
Every cause on this page except a control board costs well under $90 in parts and under an hour of your time on electric dryers, so repairing is the clear choice. On a dryer older than 10 years, a control board or a gas valve replacement is usually the point where a new dryer makes more financial sense than another repair.
Whirlpool, GE, Samsung, LG, and Maytag all place the thermal fuse and heating element slightly differently, and reset procedures vary by model. Brand-specific guides are available for Whirlpool, GE, Samsung, LG, and Maytag dryers, covering the exact fuse and element location and the error codes specific to each brand.
A clogged vent is behind most of these failures. See our full dryer vent cleaning and fire safety guide before replacing any part.
Frequently Asked Questions
Why does my dryer tumble but not heat up?
The heat circuit and the tumble motor are separate on most dryers. A blown thermal fuse or a clogged vent cuts power to the heat circuit while leaving the motor running normally, which is why the drum still turns.
Can I reset a blown thermal fuse instead of replacing it?
No. A thermal fuse is a one-time safety device that permanently opens when it trips; it must be replaced, not reset. If it blew, also check and clear the vent so the new fuse doesn't blow again.
Is a dryer with no heat dangerous to keep using?
It's not a fire risk by itself, but don't ignore it: a blown thermal fuse is often a symptom of restricted airflow, which is a fire risk. Clear the vent before replacing the fuse.
How do I know if it's the heating element or the thermal fuse?
Test the thermal fuse first with a multimeter for continuity; it's the cheaper part and the more common failure. If the fuse tests fine, test the heating element for continuity next.
The information provided here is a diagnostic aid and does not replace the intervention of a qualified professional.
