This is the second blown thermal fuse I've replaced on my dryer in the last couple months or so. The initial problem - dryer runs but doesn't heat - is typically a bad thermal fuse or thermistor. Since both were relatively cheap I ordered both parts, installed them, and the dryer was back to working again. After the repair, I was able to determine with a meter that the thermal fuse was the bad part (no continuity). About 2 months later, the dryer stopped heating again. The most common cause for a thermal fuse to blow multiple times is a clogged or restricted vent line. Since our dryer is on an interior wall with about 20 feet of ducting, I purchased a dryer vent cleaning kit from a local big box store and cleaned the vent. I was able to remove about a 5 gallon bucket worth of lint with the cleaning kit. I replaced the thermal fuse again and the dryer is back to working again. Bottom line, if you narrow the problem with your dryer down to a blown thermal fuse, make sure the dryer internals and the vent line are also cleaned out before putting the dryer back in service. The disassembly videos available here were invaluable in identifying the order to take parts off. Take care to keep track of all the screws you take out. I kept them in small containers with a post-it label on each to keep them straight.