Your Dryer's Thermal Fuse: What it is, Where to find it, How …
The good news is, these thermal devices are one of the easiest components in the dryer to test. Being just a simple 'on/off' switch that happens to be sensitive to a specific temperature, they're either closed (good) or open (bad). To test one, leave it in the dryer, power the dryer down, bypass the thermal device, and power up and run ...