![]() ![]() In many modern dryers, the thermal fuse is a safety device that cuts power to the heating element if it detects high heat. Once you’re sure that the dryer is unplugged, flip up the top panel by removing its screws and set aside. If you want to repair or replace a fuse on your dryer, first turn the power off by turning the dryer’s power cord off from the wall outlet. Check all wires for looseness at ends and terminals. If no continuity exists, then replace the thermal fuse. Measure the continuity of the thermal fuse between the two terminals. The thermal fuse can be checked by using a multimeter set on ohms (Ω). The Dryer’s Thermal Cutoff is designed to trip on high heat to protect the dryer and your clothes. We’ll discuss some troubleshooting and possible solutions to fix your problem. Before replacing the fuse, make sure that both the thermal fuse on the blower wheel and the cutoff fuse on the heater assembly is not blown. If your dryer keeps blowing thermal fuse, you could be dealing with a few common issues. Dryer Keeps Blowing Thermal Fuse – Troubleshoot and Diagnosis It disconnects power to your dryer if it’s determined that something is wrong with your dryer. The thermal cutoff works similarly but for different reasons. The thermal fuse is a safety mechanism that, when triggered, stops electrical flow to the heating element after it senses extreme heat. But none are as crucial as the thermal fuse and the thermal cutoff, because they keep you safe. If it checks out go on to the next applicable item.A typical dryer has many moving parts.Measuring through both coil terminals should give double the resistance of measuring through one coil terminal and the common terminal.Measure the resistance of each coil to the common terminal.We will assume 2 coils for the test below. Usually there will be one "common" terminal and two coil terminals. Each coil element will usually have the same resistance, but occasionally can have different resistance values for each coil. Multi-coil Heating Elements will usually have 3 terminals (or more if there are more than 2 coil elements) where the heater coils are connected to the dryer. If one goes bad, the dryer will still dry, but much more slowly. Some elements may be set up with two (or more) parts. ![]() A High resistance (over 30 Ω) may be a sign of a multi part element. If the element shows a much higher resistance (over 50 Ω) or an open circuit it should be replaced.Measure the resistance with a multimeter.If there are more than two wires coming from the machine to the element, it may be a multi-coil heating element. You will need to disconnect it from the wires leading to it.It will be located in the back cabinet of the dryer on most models. Your Kenmore Electric dryer may have a burned out heating element. Here's more on how to check the Hi-Limit thermostat.It is frequently located near the heat source.This cuts off the heat source if the temperature goes too high, and will reset on its own.Check it with a multimeter for continuity.Gas dryers have a thermal cutoff located on the duct where the heated air enters the dryer drum.On electric dryers the thermal cutoff is usually located near the heating elements.Unlike the thermal fuse, the machine will, in many cases, still spin if this is blown.They act like a fuse and trip and are not resettable.Kenmore dryers also have thermal cutoffs.Here's more info on how to check the thermal fuse. The thermal fuse could be the cause of no heat, but in most cases the machine won't run at all if it is blown.Unplug the dryer before performing these checks, as you will be working inside the dryer cabinet.If any of these safety devices listed below turn out to be the problem, make sure you clean your machine and ducts as shown on our Dryer Maintenance page. Here's a page with more information on the various safety devices and control sensors. Dryers use heat, which not only dries clothes, but can cause fires if not tamed. Dryers are equipped with a number of safety devices. ![]()
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