Powered off after self-clean - thermal fuse and what else?

I have a Whirlpool/KitchenAid double oven KEBS277DBL6. In the middle of a self-clean the other day it went blank. Powered off completely. Blank screen. I then replaced the thermal fuse connected to the control panel, which got the screen lit up again and most everything working again. The only thing not working is that the top oven doesn’t heat up. The bottom one works fine. Is there another fuse somewhere? Or some other reason the top oven is dead?