I replaced the belt and also tension pulley. Started up and no heat! So I replaced the thermal fuse & hi-limit fuse and the heating element. Still no heat so I ordered a thermistor. While waiting on the part I checked all the old parts and found that they were all good! When thermistor got here I called back to Appliance Parts Pros. I talked to Robin H and asked for a wiring schematic and she located and sent it to me. I checked the wires on the top for dryer and found that the wiring was wrong and had pulled loose when removing top. Rewired from diagram. Works perfect! I was able to return the thermistor, but not other parts. So always check everything before ordering parts you may not need!