© Copyright 2020 Hearst Communications, Inc. Thermal fuses donât look like electrical fuses; their appearance varies widely. In order to test the component, you must first remove it from your dryer. A multimeter can be used to test it for continuity. One of the most common reasons why a dryer will not be heating is if it doesnât get the correct amount of power. Robert Korpella has been writing professionally since 2000. On other models, the dryer will not come on at all. Check the dryer exhaust for lint build up or an obstruction that may have caused a rise in temperature. Thermal fuses don’t look like electrical fuses; their appearance varies widely. For an ohmmeter, set it to "Rx1." Sometimes, the drum on a Whirpool dryer continues to operate even after the thermal fuse triggers. You can find the parts breakdown for many models online; check the diagram for your model to locate the fuse. However, a thermal fuse is a one-time device. Step By Step Process To Test A Dryer Thermal Fuse With A Multimeter First of all, switch off the power source to your dryer before starting the testing process. Before you swap out your dryerâs thermal fuse, itâs best to test the component for continuity. Free delivery with $45 order. The thermal fuse stops the dryer from operating, tumble and heat included.  That’s not a fix, just a way to test for the real issue causing the fuse to fail, and it’s very dangerous to bypass the fuse for normal operation! Read Our Guide. Here are several ⦠Remove the back access panel on the dryer, and look for the exhaust duct near the bottom of the unit. Find the right fit for your laundry room . Depending on the model, the dryer may stop working completely or it will display an error code. Please, please note this is only to be done temporarily to test the thermal. The thermal fuse detects how hot the air is inside the dryer. Then you can replace the fuse. The Dryer Thermal Fuse (Thermal Cutoff, Temperature Fuse) is a 2 by ½ inch, white, plastic safety mechanism that stops the flow of electricity to the motor circuit when a dryer overheats. Either unplug the unit from the wall outlet, remove the appropriate fuse from the fuse box, or flip the appropriate breaker in the circuit breaker panel. Open up your dryer's cabinet and locate its thermal fuse. With some models, it’s difficult to get at the fuse. Before turning the power back on to the dryer, inspect the appliance and troubleshoot the reasons the thermal fuse triggered. If you replace the fuse without fixing the cause, the problem will recur, and it might even cause a fire. Found both the Dryer Thermistor and Thermal Fuse to be bad. A thermal fuse will blow when the temperature gets too high, not when it’s drawing too much current. All dryers sold in the United States are legally required to have a thermal fuse. 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