Question about Magic Chef MCB780W Microwave Oven

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Mcb780w microwave oven wont stop working

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  • bamaknox Jan 24, 2009

    I have a Sharp Carousel that has worked great for over 8 years, but one day it wouldn't stop running the light and fan after it finished cooking. With the door closed, the fan, light and turntable run, but not the magnetron. While it's doing this you can set the timer and other controls and hit start and the magnetron starts and cooks normally, but when the cooking is done, the fan, light and turntable run on continuously. We keep the door open now and only close it to use it. Is this a small problem someone can fix, or will it require replacement of the control board, something that might cost more than a new unit?

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So it's running even with the door open? If not, please reply back with more details. If so, here's my initial answer:

This is usually caused by either a bad door switch, a loose door switch mount, or a problem on the control panel.

Even though a door switch clicks, it may still be bad inside. Its continuity must be checked.

Door switch or mount trouble can be caused by slamming the door or by opening the door while it's cooking without hitting the Stop pad first.

If you someone you know decide to look into it, we have critical information on safety, disassembly and door switches at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Mar 31, 2008

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