Dryer Not Heating — Complete Troubleshooting Guide
A dryer that runs but produces no heat almost always traces to one of seven parts — thermal fuse, heating element, igniter, gas valve coils, thermostats, vent restriction, or breaker.
A dryer that tumbles but produces no heat is one of the most frequent appliance failures we service in the Bay Area. The clothes come out damp after a full cycle, energy bills climb, and the laundry pile grows. The good news: the cause is almost always one of seven well-understood parts, and most repairs are completed in a single visit.
Gas vs. electric — diagnose the right system first
Before troubleshooting, know which type you have. Electric dryers use a heating element and need a 240V circuit (two breakers). If only one of those breakers tripped, the motor will still run but the element won't heat — a classic "tumbles but no heat" symptom. Gas dryers use an igniter and gas valve coils to ignite a burner; the electrical side only runs the motor and controls.
The seven most common causes
1. Tripped 240V breaker (electric dryers only)
Many electric dryer "no heat" calls are resolved at the panel. A 240V circuit uses two linked breakers; if one trips, the dryer still powers on and tumbles, but the heating element gets no voltage. Flip both breakers fully off and back on.
2. Blown thermal fuse
The thermal fuse is a safety device that blows when the dryer overheats — almost always because the vent is clogged. Replacing it without clearing the vent will blow the new fuse within days. On most brands the fuse is a $5–$15 part mounted on the blower housing.
3. Failed heating element (electric)
Heating elements burn out over time — a visible break in the coil is the giveaway. Test with a multimeter for continuity. Common on Whirlpool, Maytag, Kenmore, and GE electric dryers after 7–12 years.
4. Faulty igniter or gas valve coils (gas)
On gas dryers, the igniter glows red to ignite the burner. If the igniter glows but the burner never lights, the gas valve solenoid coils have failed. If the igniter never glows, it's the igniter itself or an upstream control problem.
5. Clogged dryer vent
A restricted vent is the underlying cause behind most blown thermal fuses and burnt heating elements. If clothes take two cycles to dry, the lint trap is hot to the touch after a cycle, or the dryer top is unusually warm, the vent needs cleaning. We recommend professional vent cleaning every 1–2 years. See our long dry-time guide →
6. Faulty cycling thermostat or high-limit thermostat
The cycling thermostat regulates drum temperature; the high-limit thermostat is a second safety. Either can fail open and kill the heating circuit. These are inexpensive parts ($15–$40) but require disassembly to access.
7. Failed control board or timer
Less common, but on newer electronic-control dryers a failed main board can stop sending voltage to the heating circuit. We diagnose this last, after the cheaper components have been ruled out.
What to try before calling a technician
- Check both breakers (electric dryers). Flip fully off, then back on.
- Clean the lint trap and inspect the vent from the dryer to the wall and outside to the hood. Disconnect and run a vent brush through it.
- Run a high-heat cycle with the lint trap door open briefly. If you feel any heat coming through the trap, the element/igniter is firing — your problem may be airflow, not heat.
- Listen for the burner on a gas dryer. A faint whoosh-click 30–60 seconds into the cycle = igniter and burner working. Continuous tumbling with no ignition sound = igniter or coil failure.
- Do not bypass the thermal fuse. It blew for a reason — fix the airflow problem first.
Typical repair costs in the Bay Area
- Thermal fuse replacement: $140–$220
- Heating element (electric): $260–$420
- Igniter (gas): $180–$280
- Gas valve coils: $220–$340
- Cycling/high-limit thermostat: $160–$240
- Vent cleaning: $120–$220
$89 diagnostic fee waived when you approve the repair. See full dryer repair cost guide →
When to call us
If breaker resets and vent cleaning didn't solve it, the next step is a service visit. We carry heating elements, igniters, thermal fuses, thermostats, and valve coils for every major brand. See our dryer repair service →, or call (510) 930-0404.
Need a technician?
Same-week appointments across the Bay Area.