James H Marienville , PA August 16, 2015 Went dead 1st i checked to make sure the circuit was still on, then i opened it up & looked for a fuse, tested it (was good) then followed wiring to cavity thermostat which was open. bypassed it & it still worked. so i went online & found the part, ordered it. installed it, all good. 4 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes