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Test Thermal Fuse

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4 things to test on a dryer

What happens here

With the dryer safely unplugged from the wall outlet, locate the thermal fuse. This is typically a small, white, rectangular component often found mounted near the heating element or the blower housing. Set your multimeter to the continuity setting (this is often indicated by a speaker icon or a diode symbol, and it will produce an audible beep when continuity is detected). Touch one probe of the multimeter to each terminal of the thermal fuse. If the multimeter beeps, the thermal fuse has continuity and is functioning correctly. If there is no beep and the multimeter displays "OL" (Open Loop), it means the fuse is blown and needs to be replaced. A blown thermal fuse frequently indicates an overheating issue, commonly caused by a clogged dryer vent.

Goal: Determine if the thermal fuse is functional

Tools and materials

  • Multimeter Klein Tools — Testing the continuity of the thermal fuse

What they say

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these to here and you should get 240 volts. 240, call that 240. Go ahead and unplug your dryer. So, the next thing to check would be your thermal fuse and we can hear the beep. What this part does is it prevents your dryer from getting too hot and catching on fire. If this doesn't beep, go ahead and replace this and clean out your dryer vent. Now, we can go ahead and we can test our start switch. And that beep indicates that we have

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