After reading about the things that can cause a dryer not to heat - clogged vent leading to thermal overload, heating element burned out, I took a look at the vents to make sure they were clean. The vent door on the outside of the house was frozen shut, sealed by frozen lint. After popping off the lower panel (2 nuts) and taking out the heating element panel (another 2 nuts) I visually inspected the "spring" heating wire for a break and didn't see one. I checked the thermal fuse for continuity and it was open, so I ordered a new one. After it arrived, it took 10 mins to get the drer back together. Easy repair, recommend doing it yourself and getting the parts from these guys because they're so quick and the prices are good. For $50 I could have had the complete heating assembly if I needed it - which is less than a call out from Sears or an appliance company by itself.