In my 30 years as an appliance repair technician, the most common call is to fix self-cleaning ovens.
Self-cleaning ovens are attractive, but they're like swimming in shark-infested seas.
Shark bites aren't certain, but they're probable.
Self-cleaning your oven doesn't ensure a costly repair, but it's likely.
Self-cleaning ovens burn crumbs and oil to ash.
The oven is heated to about 1,000° F for three to five hours. Overheating may harm oven components.