Carol F. for Model Number KitchAid Microwave Model# KHMS155LBL3 I ran the test & all the buttons showed 8 except the simmer which ran a code of HM 553 when pressed. Do you still think I need a new control panel?
Answer Hello Carol. Yes, it is not an issue of a button not working, but the issue is a stuck button. Replace the panel. Read More... Answered by AppliancePartsPros.com | Tuesday, March 12, 2013