While you wait for answers, we may have found some information which could help you.
Click here for Microwave Works Fine
KA model KEMC378KSS01 microwave oven combo?
Where can I find the model # on Kitchenaid slide-in range?
How can I fix a heating problem with our YKEMC307KS0 oven?
KitchenAid oven stuck on "insert probe"?
door switch repair or replacement lamp fuse?
How can I replace the light in my microwave?