My Kitchenaid KHMS 155LSS-4 makes a clicking noise upon starting for about three seconds, then will act like its heating but will not heat. The noise repeats itself every 20 seconds. It did this when I first got it, then stopped, and now has started again 2 years later. It has to be some sort of setting?

Is there any fault code displayed on the display, such as F6?

I would first suggest checking the door switches and mounts.

If they are good, I would suspect the control board. We regularly repair such control units for customers nationwide by mail for $39.95 postpaid in about a week or so with a one-year guarantee.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.



At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

If you don't find yours, or if you want to look at it without disassembling the oven, you can download it here.

Feel free to contact me directly (and please remind me of your full model number from the tag on the unit) for more information & help.

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

William E. Miller, AS-EET
[email protected]
http://www.microwavedisplay.com