Dryer Thermal Cutoff Test

Most dryers plug into a 220 volt wall outlet so you can unplug the unit to cut off power.

Dryer thermal cutoff test.

Some are made from plastic. When the fuse blows the dryer won t get hot but when the. A thermal fuse acts like a switch when dryer exhaust temperatures climb. Testing a dryer thermal fuse checking the thermal fuse is the fastest way to determine if it is why the dryer will not generate warm air.

Dryer isn t heating or takes too long to dry. The next time you try to start the dryer the motor won t run even though the dryer has power. The fuse controls the dryer s heating element whereas the cutoff controls the motor. If your dryer is not heating then you should test the thermal fuse thermal cutoff for continuity to see if it is good or bad.

If you do find that the thermal fuse has shorted out you simply need to pull it out and replace it with a new one. Thermal fuses are required on all dryers built since the 1980s. The best way to test a thermal fuse is by testing it with a ohmmeter or digital multimeter. You can test the thermal fuse and repair the dryer yourself to avoid spending a lot of money on a service call.

Thermal fuse shapes and sizes vary. If the timer doesn t advance in the auto dry cycle the issue is usually an airflow problem clogged vent vent hood dirty filter etc. If the timer doesn t advance in a timed dry cycle the issue is in the timer itself wp3976574. This video demonstrates how to test a high limit thermostat on a gas or electric dryer.

Troubleshoot your dryer s thermal cutoff switch by testing its electrical continuity. Turn off the electrical power to your dryer. 1 disconnect the dryer from the wall outlet and pull it out from the wall to access the dryer vent. How to troubleshoot the thermal fuse of a whirlpool dryer.

2 access the dryer s rear panel. Unplug the appliance from the wall or cut the circuit to the dryer at the main fuse or breaker box. This free video shows step by. For an ohmmeter set it to rx1.