Question about Microwave Ovens
It's likely a failed fuse or TCO (thermal cutout / thermostat)
Yours should have a "mini-manual" (technical sheet) hidden either behind the grille or control panel. It's very helpful in locating and testing components.
There is a video here here showing how to remove a typical over the range control panel assembly in under 5 minutes.
Accessing some components (especially the oven cavity thermostat) for testing and possible replacement will require you to remove the oven from the wall and take off the outer cover.
If so, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.
You can find exploded views and installation instructions here and your can order Kitchenaid parts from The Pros here.
Posted on May 04, 2013
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Posted on Jan 02, 2017
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