As Mssr. Kipling would say, Dear Best Beloveds:
This is a tale in which the moral of the story is: don't run the self clean. Sure, sure, everybody laugh. But I did it too, in a moment of weakness. Probably around a holiday when I was desperate to have my oven be perfect.
I have, as many do, the Kitchenaid Superba oven. This one is a wall unit, the KEBC107KSS0. My hunch is that it doesn't matter what kind you have. Good news for me is that I have another oven, which is why I could let this one sit for literally two or three years. Otherwise...crisis.
One day, many moons ago, I had the unwise idea to run the self clean in the night. Awoke to the incessant beeping of the oven and the realization that the oven would not heat. I knew that I had broken the cardinal rule of Do Not Self Clean.
It was still a fantastic clock and timer, however.
So I ordered a new thermal fuse. The problem is, this oven is a wall unit. You need a strong friend to help pull it out and rest it on a very sturdy table (not a fancy table--scratches) while you are doing this work. Unless you are a singularly strong (and youthful) person with a back brace, please do not try to do this by yourself. The thing that is the most insulting thing about this job is that it's not about your smarts or your ability to sleuth out the problem. You do the self clean, your oven stops heating, it's really easy. Thermal fuse. Get the part. The hard part is unfortunately the weight of the stupid oven.
Just pull off the trim, though, and depending on your electrical/conduit situation, you may need to unwire it at the box (top tip: turn off the breaker first). I did. Wise.
But the weight of the oven is significant. Please take your time, and use your knees. Have a really sturdy table. And remember the friend.
And that's the worst of it. The thermal fuse, you pull it off with two screws and two finger pinches; you put the new one on with the same, but opposite, activities. That step takes probably a minute. Everything else, ten to twenty depending. And when you are done, and your oven heats again...the warm smell of success.
So, the moral yet again is, use a sponge with nonstick friendly scrubby on one side to clean your oven. Don't even think about self clean.