How do you replace the lamp in a Kitchenaid Superba microwave convection oven combo? What type of lamp?

try to turn the coupling, either stripped broken coupling, or bad gear in drive motor. should not be able to turn by hand

Try the directions on this site: Customer Questions and Answers for Electronic Control Board by Whirlpool

A loud humming noise in microwave mode will usually be a shorted high voltage diode or bad magnetron.

Please check the details of how a microwave works which will help you identify before the panel is removed and the lamp replaced.
The top cover of the unit can be removed after the screws can be removed with the power cord removed. The lamp can be seen fitted on the front side with the light to shine into the chamber, you can remove the buld from holder and replace with the same type .

http://www.espares.co.uk/advice/microwave/a/5/1443/how-a-microwave-oven-works.html

Mommakat45
You can find the manual at
http://shared.whirlpoolcorp.com/product_literature/search_results.jsp?searchTerm=KEMS376TWH1&siteCd=KAD&userType=Consumer

HI, this is an indication of a failed door switch. When the switch fails, the control cannot recognize the closed door signal. Simply replacing the door latch mechanism will solve this issue.

Replace the door latch assembly, asap.

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

dhjjd

Check for a shorted lamp. When you open the door, often they turn on the light.

Another thing is look for wiring being scrapped by door hinges.

You will need to remove the oven from the wall and remove the outer cover.

If for some reason you don't have yours, you can download your owner's manual and installation instructions free from this page.

You can also find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

These models use halogen lamps. You must not touch halogen types with your bare skin, as the oils will shorten the bulb life.

You should be able to get one from a home center or local appliance parts store.

If you order it online (from the link above) it is part # 4375348.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Remove the front panel by removing the screws located on the inside of the door (note hold door inplace, since it is heavy and will fall out after screws removed). Unscrew screws located on bottom of plastic retainer (2 each) Remove tension spring. Note 2 are included right and left. Note color of spring on end, different springs for different door types, stainless, black,beige or white. Replace all in reverse order.