Kitchenaid Superb E

Kitchenaid Superba Selectra 30 Double Oven

Bottom oven will not turn on at all. One day it was fine, the next day nothing. The light does not even come on when I open the door, however, when I open the top oven the light does come on in the top and bottom ovens. I get nothing when I press bake, broil, or clean.
I also need to replace the glass on the top, how hard is that? The top oven works fine, just the glass panel in the door is cracked.
Thanks for any help