Replaced fuse. It took much longer to get the oven out of the wall to access the fuse and replace the front panel than to do the repair. This fuse failed at the end of the cleaning cycle for the bottom oven and left the door locked because the open fuse removed the 120v power from the control board. The locked door made it impossible to remove one of the screws holding the wall oven in place. However, after I ground off the head of the screw behind the edge of the locked door I was able to slide the oven out enough to access the fuse and make the repair.