Many times when a dryer's thermal fuse is blown, the dryer stops heating up the clothes when they dry. To determine whether the problem is the blown thermal fuse or something else, take out the thermal fuse and run the dryer as normal. If the dryer starts heating again, you know that your thermal fuse is blown.
At that point, you would need to get a new thermal fuse for your dryer. Some people are tempted to leave out the thermal fuse and keep using it, but this can lead to unsafe conditions in your home.
Alternatively, you can test a thermal fuse by using these steps.
Step 1 - Disconnect Home Appliance
Disconnect the dryer. You can do this by simply unplugging the device.
Step 2 - Find the Thermal Fuse
Once the dryer is disconnected, you can look for the thermal fuse. Usually the thermal fuse can be found behind the rear panel or behind the bottom toe panel of the dryer.
Step 3 - Remove Coverings
Use a screwdriver to remove the panels covering the thermal fuse.
Step 4 - Use an Ohmmeter
You can now use an ohmmeter to test the thermal fuse. Start by adjusting it to the Rx1 setting. If it moves to 0, you do not need to replace the fuse. If the ohmmeter does not move, you need a new fuse.