Heater Sparks Then Shuts Off
I have a Noma brand heater model: AFH302OTW. I recently disassembled the housing to vacuum all the dust inside that had accumulated over many years. After I reassembled the housing, a problem occurred. The heater would run for a short period of time, then a spark would occur next to the heating coil and the unit shuts off on its own. The fan is working and there is heat from the heating coil before it shuts down. If I unplug the unit and let it cool, it would turn on again for a short while until it shuts off again. I presume something is overloaded that is causing the safety switch to kick in, but I am puzzled which part failed. Could it be a faulty temperature sensor?
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