Question about GE Microwave Ovens
The top grill problem is probably due to the grille's being broken.
There are switches associated with the grille door and if they or their actuators are damaged, it can make the grille motor want to come on (or not come on) when it should (or should not).
This exploded view diagram shows where they are.
The turning off after cooking for 2-3 seconds is a bad magnetron. See this FixYa solution even though your model number is different.
You can find links to helpful exploded view diagrams and part ordering help here.
I recommend that you bookmark that link to your favorites.You can download GE owner's manuals and installation instructions here.
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.
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
Microwave Oven Control Panel Repair Nationwide
Posted on May 05, 2010
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Posted on Jan 02, 2017
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