Had a look at this double oven today. Tenant says they came home to a warm kitchen with the back of the main oven glowing red. No fan. Oven was not in operation nor had any timers been set. Main power switch on wall was the only thing turned on. Also main oven element glows red when upper grill is turned on. This oven has both a power board and a display board(both obsolete now) Would as someone mentioned in a previous post poor insulation on one of the elements cause this.Paul
Yes low insulation on the fan element could well cause this however I have had this about three times on this model over the years and it was the power board on each occasion.