Why did my wall unit space heater quit working?
My heater is suddenly not working. I have tried it in different working outlets. How can I tell if the problem is with the bulb or the machine? I will try to get the bulb out and see if it looks dark on the ends...and if there is movement inside when shaken, as with incandescent bulbs??? Need replacement bulb for Sears quartz heater 1500 watt model 344.7147.
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