Would the temperature switch cause it to blow heat in the air only (no heat) mode and also blow thermal fuse?
Answer Hello Joey. You will need to check and see if the heater 279838 is shorted to the housing, causing the unit to ground out. You will look for one of the coil wires to touch metal. If so, this can cause the problem your having. If the heater is good, you will want to test and see where the power for the heater is coming from. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. Hope this helps.http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html