Oven "died" after self-clean

[Nan]

I recently turned my KitchenAid "Superba" oven to self-clean according to the directions on the "Easy Set Guide" that came with it. After three hours, there is no electronic display and we are unable to open the oven door to display the model number. We checked for a thrown circuit-breaker, but they are all fine. Anybody have any suggestions? Thanks, Nan