Question about Magic Chef CMV1000B Microwave Oven

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Magic chef mco160uw Tray not turning and light off

My magic chef mco160uw tray doesn't turn and the light is off when the microwave operates. It began doing this intermittently but now it happens all the time. I looked at the control panel for obvious burns but couldn't find anything. I did see that the tray and light are operated by the same relay. Any help is appreciated. Thanks.

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I had similar problems with my microwave shutting off to protect the unit and then coming on normally after it cooled down. I finally found out what my problem was after 6 months of it being installed. My exhaust fan was not working properly. When I say exhaust fan, I do not mean the fan itself. There are 2 or 3 ways to set up the direction of the exhaust fan depending on where your ducting outlet is in your home. I found that the little flap that swings opens that the fans blows open, actually was not swinging open at all or just a little bit. Therefore the microwave would heat up with the warm air and shut down. I just removed the flakey metal swing hinge and now my microwave works like a charm. If you can get to that hinge or remove the whole unit from its wall mount and run it with it sitting on the table or work-bench, that would tell you if it was a ducting problem. Good Luck
Scott in Arizona

Posted on Jul 19, 2012

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The problem will be a bad relay, a component that drives the relay, or a broken trace on the circuit board.

This blown trace happens a lot when the cooktop lights blow.

We regularly repair such control units for customers nationwide by mail for $39.95 postpaid in about a week with a one-year guarantee.

Feel free to contact me directly (and please remind me of your full model number) for more information & help or see our Web site.

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

William E. "Ed" Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

Posted on Feb 08, 2009

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