if memory serves me correctly this oven has an unusual fan cooling motor which is prob faulty as ck says, its located at the top front corner at the top of a duct that runs up from the floor inside the right hand side panel. if this fails there is a thermal overload that open circuits and breaks the supply to oven. if it only needs cleaning around fan blades and runs again you could use some extractor filter down at the bottom of the duct on re assembly
keymatic, May 2012