Question about Magic Chef CMV1000B Microwave Oven

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Microwave shut-off within 2-3 minutes

I have a Magic Chef model MC0160UQ. Within 2-3 minutes of heating food it shuts off completely for about 5min. Also, when I select the low fan it does not work, however the high fan works. Please assist with these issues if possible. Am I able to fix or adjust the magnetron myself since it may be overheating? or what should i do?????

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  • kwillert Dec 01, 2008

    micro shuts off after about 10 min of cooking and comes on after it seems to have cooled off

  • dperr219 Dec 02, 2008

    I have the same problem but found that the cooling fan for the magnetron is not going on with the over. I assume the electronics heat up and shut down. I will check the fan connections in the next day or so and hope it's that simple.....Another note- I bought this oven approximately 2 years ago but just installed it last week, so basically it's brand new ( but out of warrenty of course)...

  • Anonymous Dec 03, 2008

    same thing it just shuts off and takes a few minutes to come back on

  • cghicks2001 Dec 07, 2008

    Yesterday and today after trying to melt chocolate for candy, the microwave completely shut off - turned on again after about 5 minutes. Has happened occasionally in the past but usually after having the stove/oven on underneath it for an extended amount of time so I figured it was just overheating externally as well as internally. But this was with no heat under it and only about 3 minutes of use. Ridiculous! I can't return it as one helpful person suggested since it's out of warranty, but it is certainly not old enough and not used enough to expect this kind of weird quirk. P.S. This is not my specific model of microwave but it is a Magic Chef and obviously the product brand has issues.

  • Anonymous Dec 17, 2008

    Mine just started yesterday and I am very upset with this problem. Does anyone have any suggestions about how to fix this problem?

  • peterandabby Dec 25, 2008

    Oddly enough mine shut down also while melting chocolate. We returned it to Home Depot and it just happened again!!! While melting chocolate.

  • kp1003 Jan 03, 2009

    I am having the same problem. Mine is 2 years old, but not used on a regular basis. I am going to take your suggestion and contact Home Deport

  • tammyshir511 Feb 24, 2009

    have a new tappen over the range microwave when i use it for 2 or 3 min it completely shuts down about 5 min later comes on whats wrong?

  • Anonymous Mar 15, 2014

    Installed new magnetron and microwave still wont heat up food

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Why don't you return it? I think this is a common problem. We returned ours to Home Depot with no questions asked.

Posted on Dec 01, 2008

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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

Posted on Jul 19, 2012

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We went back to the home depot exchanging the same microwave three times (and installing each one!) before we figured out the deal with the shut off.  My wife was attempting to melt white chocolate in a plastic bag.  White chocolate is basically wax and has very little moisture in it and has the same effect as running an empty microwave.  After a minute or two, the power center of the microwave would overheat and shut down, acting much like a thrown breaker.  After several minutes, it would reset itself.  What are you trying to microwave?  If you can heat a cup of water for 5 minutes without issue, the problem is probably what you're trying to heat up.  If it can't heat water, the problem is likely with the microwave itself. As for the fan, you can't select the low fan setting when the microwave is running, because the high setting is already on by default.  You should be able to select low speed when not using the microwave. Good luck!

Posted on Mar 08, 2009

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I AM THE WARRENTY REP THE FAN COOLING FOR THE MAGNATRON HAS PROB FALLEN OFF THE MOTOR..IV SEEN IT A HUNDRED TIMES.IT IS BEHIND THE CONTROL PANEL.

Posted on Mar 06, 2009

  • John Foster
    John Foster Mar 06, 2009

    THE OTHER PROBLEM IS THE THERMOSTATE ON THE MAGNITRON IS TO WEEK AND IS TELLING THE UNIT TO SHUT OFF TILL IT COOLS DOWN.I STILL SAY ITS THE FAN FALLEN OFF THE MOTOR. THAT COOLS THE MAGNATRON

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