One important thing on these DSI stoves - the plug has to be right -- meaning the ground, hot and neutral have to be correct. If you have a bad ground, or reversed neutral , the oven may not work right. (a whirlpool trainer told us this several years a go at a class) - Use a tester (you plug it in, shows if outlet is wired correctly with a series of lights) These testers cost only 5 or 6 bucks and I keep one in my meterbag at all times.
Had a stove, couldn't figure out right away a few years ago. Turned out, they were remodeling basement, changed out an outlet in basement, and it reversed polarity in the kitchen outlet. Once fixed, worked fine. Just something to keep in mind.