Tumble Dryer Motor Running but No Heat
This fault is distinct from a fully dead dryer: the motor runs and the drum tumbles normally, but no heat is produced, leaving clothes tumbling cold for the full cycle length.
Common causes
- A blown thermal fuse specific to the heater circuit
- A failed heating element with a broken internal coil
- A faulty cycling thermostat that never signals the element to activate
- A broken gas igniter or gas valve solenoid on gas dryers
- A wiring fault or loose connector in the heater circuit
How to check it
- Unplug the dryer and access the heating element, usually housed at the rear of the drum or in a duct near the blower.
- Test the heating element for continuity with a multimeter — no reading confirms a broken element.
- Test the thermal fuse and thermostat the same way.
- On gas models, check whether the igniter glows during a heat call; if it doesn't glow at all, the igniter itself has likely failed.
Fixing it
Electric heating elements, thermal fuses, and thermostats are all straightforward multimeter-testable parts, and a confirmed-bad component is usually a direct swap once you've located it in the heater housing. Always investigate why a thermal fuse blew in the first place — a blocked vent restricting airflow is the most common underlying cause, and replacing the fuse without addressing the vent will likely blow it again.
When to call a technician
Gas dryer heating faults involving the gas valve or igniter circuit should be left to a qualified technician, since they involve both gas safety and higher-voltage ignition components that carry real risk if mishandled.
Note: Component layouts and access panels vary between brands and models. Always consult your specific model's service manual before disassembly, and disconnect power (and gas, where applicable) before opening any panel.
Prevention tips
Vent maintenance does double duty here: a blocked vent is one of the most common reasons a thermal fuse blows and cuts heat while leaving the motor running normally. Treat a no-heat fault as an opportunity to check the full vent run even if the fuse or element turns out to be the direct cause, since an unaddressed blockage will often cause the same failure again within a short time.
Quick questions
Why does the drum keep turning normally when the heat has completely failed? The drum motor and the heating circuit are largely independent systems in most dryers, which is exactly why one can fail while the other keeps working normally.
Could a tripped circuit breaker cause no-heat-but-motor-runs symptoms? Generally no — heating elements typically draw more current than the motor circuit, so a partial trip affecting only heat is uncommon; a blown thermal fuse specific to the heater circuit is a far more likely explanation.
Parts and repair notes
Electric heating elements, thermal fuses, and thermostats are all commonly stocked parts for popular brands, and this fault is often resolved in a single visit once the faulty component is identified. Gas dryer heating faults tend to take longer to diagnose and repair given the additional safety checks involved with gas valves and ignition components, so it's worth allowing extra time if your dryer is gas-powered.
Related issues to watch for
Motor-running-no-heat symptoms are closely related to the general no-heat section of this guide, but with the added confirmation that the motor and drum system are functioning normally, which narrows the likely fault down specifically to the heater circuit rather than the machine as a whole.