Dryer cycling thermostat with internal bias heater, L155-25. If the dryer won't heat, it is unlikely that this thermostat is causing the issue, as the thermal fuse or thermal cut-out normally fail first.
Adjustable dryer cycling thermostat kit L135-155. The cycling thermostat cycles the heat on and off to regulate the air temperature. If the cycling thermostat is defective, the dryer will not heat. To determine if the thermostat is defective, use a multimeter to test it for continuity.
Cycling thermostat. NOTE: This is normally not the cause of the dryer not heating. Visit the Repair Help section of our website for additional repair information.