20 Most Recent KitchenAid KHMC107BT Convection/Microwave Oven - Page 8 Questions & Answers

Need model number. If this is one of those built-in wall ovens with microwave on top (with the door that drops down), it is definately NOT something the average customer can do himself. It's a 45-minute job for an experienced technician! If you need further help, reach me via phone at https://www.6ya.com/expert/ronald_e6b9572cebe3ad27

I would suggest reading the manual but I beleive it means function 1

remove broken switch & replace new one w/c you can easily buy from any electronic store or Radio Shack...

Every oven, every microwave comes with an instruction manual, a user guide and an installation guide. Just look in the box. what use if I have to type over a manual, you already have? (Should have) (can get on the net)

Yes. Just go to the manufacturers website and you should be able to order single parts.

Most likely causes - shorted high voltage rectifier, or failed high voltage transformer, or shorted high voltage capacitor, or shorted magnetron. If an odor accompanied the failure, high voltage rectifier or transformer most likely. All of these components operate on 4000 v, or more - with enough current to kill you. Make sure the unit is unplugged, and the high voltage capacitor is fully discharged before testing. If you need further help, I’m available over the phone at https://www.6ya.com/expert/david_29ad5d1dd86564b0