I am looking for the title of a '80s movie involving a scene where a woman's arm is trapped either in an oven or a microwave and gets cooked. I remember the woman screaming her lungs out (of course) but the rest of the movie is pretty vague.

I would appreciate for a title, even though my details are pretty vague. I think the movie involved people getting trapped in a mall, or where appliances went evil and attacked people. Not sure though.

Thanks.