While you wait for answers, we may have found some information which could help you.
Click here for Light Bulb OvenLight replacement for the microwave?
How to replace bulb in KitchenAid Microwave oven?
How can I replace the light in my microwave?
kitchenaid microwave?
replacing light bulb in kitchenaid microwave 378KBL?
How to fix a light bulb in oven?