Thanks for your suggestion Liverock, I tried it but it didn't work. My husband took everything apart, cleaned it, removed and replaced things, checked the switch by bypassing it, put it back together and it didn't work. After a few hours I tried it just for the heck of it, and it turned on. It wasn't overheated, because it was off all night when it first acted up. Not sure what it was or how long it'll last but I'm using it for now.