If the dryer runs but doesn’t heat, don’t even think it’s the thermal fuse. If the thermal fuse was the problem, the dryer wouldn’t run at all.
First thing to do is verify your source voltage for the dryer; for those of you in Manhattan, this means to use your multi-meter to measure the voltage at the dryer outlet to make sure you have 240v. Y’see, Slick, the dryer motor only needs 120v supplied by one of the lines to run. But the heating elements, on the other hand, need 240v supplied by both lines to get hot.
If the source voltage is ok, then the most likely bad parts are listed below. As always, you should use your meter and the tech sheet supplied with your dryer (and cleverly hidden inside the control panel) to verify:
2. Heater Relay
To learn more about your dryer, or to order parts, click here.
I have this same problem but can’t figure out how to open the control panel.