Dryer Not Heating? How to Diagnose and Fix Common Dryer Heating Problems

Why Is My Dryer Not Heating?

A dryer that tumbles but doesn't produce heat is one of the most frustrating appliance problems — your clothes come out just as wet as they went in. The good news is that most dryer heating issues are caused by a handful of common, replaceable parts.

Common Causes of a Dryer Not Heating

1. Burned Out Heating Element

The heating element is the most common culprit when your dryer stops producing heat. Over time, the coils can break or burn out. You can test the heating element with a multimeter for continuity. If there's no continuity, the element needs to be replaced.

Common part numbers: WP3387747, DC47-00019A, 279838

2. Blown Thermal Fuse

The thermal fuse is a safety device that shuts off the dryer if it overheats. Once blown, it must be replaced — it cannot be reset. A clogged dryer vent is usually the root cause, so make sure to clean your vent before installing a new fuse.

Common part numbers: WP3392519, DC96-00887A, 137032600

3. Faulty Gas Valve Solenoids (Gas Dryers)

If you have a gas dryer, the gas valve solenoids control the flow of gas to the burner. When they fail, the igniter will glow but the gas won't ignite. These coils typically fail intermittently at first, then completely.

4. Defective Thermostat or Thermistor

The cycling thermostat and high-limit thermostat regulate the dryer's temperature. If either fails, the dryer may not heat properly. Test them with a multimeter for continuity at room temperature.

How to Test Your Dryer Heating Element

1. Unplug the dryer from the wall outlet
2. Remove the back panel (most models) or front panel
3. Locate the heating element — it's usually a long, coiled wire inside a metal housing
4. Disconnect the wires from the element terminals
5. Set your multimeter to the continuity or resistance setting
6. Touch one probe to each terminal — you should get a reading between 10-50 ohms
7. If you get no reading (infinity/OL), the element is burned out and needs replacement

When to Call a Professional

While most dryer heating repairs are DIY-friendly, you should call a professional if you smell gas (gas dryers), see sparking, or aren't comfortable working with electrical components.

Pro Tip: Always clean your dryer vent system after replacing a thermal fuse. A clogged vent caused the fuse to blow in the first place, and a new fuse will just blow again if the underlying issue isn't fixed.