I would first suggest checking the bottom door switch and its mount.
See these help files:
http://031d26d.namesecurehost.com/mwd/safety.txt
http://031d26d.namesecurehost.com/mwd/disassembly.txt
http://031d26d.namesecurehost.com/mwd/doorsw.txt
The full service / installation manual is
here.
If it's not a switch issue, you may have a sticking relay on your control
board, which can be economically repaired. Details are
here.
SOURCE: microwave exhaust door stuck in open and close cycle.
Depending on age You might need a new one. A repairman might be able to fix it.
SOURCE: HOW TO REPLACE BLOWN FUSE
Look for a reset button on the back--push to reset. If trips again, unit has probable short.
SOURCE: My JENN-AIR Microwave Oven stop
Hi, my name is Audrey and I am a Jenn-Air employee. I would appreciate the opportunity to assist you with your microwave. Please send me an email through our customer service address, and type 'Attention: Audrey' in the subject line. Please include your full name, phone number, and model/serial number, and I will look into the issue for you.
SOURCE: Jenn-Air Microwave vent grill opens and closes
I have this same problem occasionally. Pull the vent grill open and look for a white cam that rotates when the microwave is on. To the right of that cam, there are two gray switches. The bottom switch should have a red tab that pops out. When the vent grill opens and closes continuously, the red tab is stuck in. Take a flat screwdriver or tooth pick and push gently in on the red tab to release it. It must get stuck due to grease or dirt accumulation. Good luck.
SOURCE: jenn air microwave loose door
Most if not all of these units have a safety switch--can't get at it from the outside---if unit is taken apart it often is snapped into a plastic holder and prevents the unit from working if door is open.
If it is loose or not engaged completely the unit will do what you are describing.
Hi, my name is Audrey and I am a Jenn-Air employee. I would appreciate the opportunity to assist you with your microwave. Please send me an email through our customer service address, and type 'Attention: Audrey' in the subject line. Please include your full name, phone number, and model/serial number, and I will look into the issue for you.
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