Originally Posted by Rob Perin
I just experienced a similar problem. Haven't taken it apart yet.
My problem was with the part called the hi limit thermostat. It apparently shorted out and the plastic part of it melted which is what caused the smoke. I replaced it and it is working fine now. when you remove the outer cover, you will see the part on the top of the inner cabinet. There will be two black wires connected to one side of the part and a single black wire connected to the other side. If the plastic part of the thermostat is melted, that is your problem. Let me know what you find.