Jeff for Model Number KHMS155LSS-4 Our Kitchenaid Microwave comes on by itself and will not shut off unless it is unplugged. No diagnostic code comes up. Should I replace the key pad assembly or the microcomputer?
Answer Hello Jeff, This sounds like one of the three door switches 8206566 have failed. The interlock 8205572, (door switch mounting assembly), could have been broken if the door was slammed or the plastic became heat stressed. Read More... Answered by AppliancePartsPros.com | Thursday, June 14, 2012