When my dryer quit heating last month, I followed the same logic. In my experience, the thermal fuse is the most common culprit. I used a multimeter to test it, and sure enough, it was blown. A new fuse cost me under ten dollars at the local hardware store. Swapping it out fixed the issue completely. Your mileage may vary, but starting there saved me a ton of time.
Are you kidding me? I heard dryer parts can cost a fortune, but under ten dollars for a fuse is insane. My cousin paid over a hundred for a service call last year for the same thing. Knowing how to test it with a multimeter must have saved you even more. I need to learn how to do that myself.
Noticed this same thing with so many small fixes around the house. The simplest, cheapest part often fails first, like a blown fuse or a clogged filter, but our brains jump to the worst case. Saves so much stress and money to check the easy stuff.