While you wait for answers, we may have found some information which could help you.
Click here for Door Stays Openreplacing light bulb in kitchenaid microwave 378KBL?
I have model # kcmc155jbl and it just started over heating what should I d?
How do I change a light bulb in the kitchenaid KEMC378KSS02 microwave/oven ?
How to fix a light bulb in oven?
Where can I find the model # on Kitchenaid slide-in range?
Light replacement for the microwave?