Jenn Air Range/Stove/Convection Oven

Self-cleaned the oven two years ago now, and after that the oven would not heat or broil. (Around the same time, we also had a very small fire inside the oven, where a couple french fries started burning, but it was quickly put out. Can't remember which came first, the fire or the self-cleaning.)

The control panel seems fine, the stove top works. We just replaced the oven sensor, but it did not fix the problem. Everything is working but there is no heat with the bake or broil elements.

Thanks for any help that can be provided!

Yes, the convection works. Everything seems to work fine except no heat for bake or broil. The panel works normally and shows everything it should.

Thanks.