well tom u need to go to the back of the oven rear of the stove and remove the approx 8 philips head screws of course unplug the unit first. inspect all the wires and conections i trust u will find the answer look for burn marks frayed wires ect. this usally occurs after the self cleaning is used on older models and the wires dry out and start to fail from the intense heat
EDDIE CULLEN
December 2009