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Thread: Magic Chef Microwave, everything works but it does not heat

  1. #1
    Join Date
    Nov 2009
    Location
    Michigan
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    Default Magic Chef Microwave, everything works but it does not heat

    Model Number: MCO165UB
    Brand: Magic Chef
    Age: 1-5 years

    I have an over the range Magic Chef microwave. Everything on it works
    fine, everything sounds normal. It just doesn't heat food.
    Does not even warm anything.
    Where do I start?
    Thanks,
    Van

  2. #2
    Join Date
    Jul 2006
    Location
    Murray, Utah, United States
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    18,790

    Default

    Start by checking the voltage going to the transformer or primary supply voltage. Basically, you're dividing the system into two sections, low voltage side and high voltage side. If the primary supply voltage is correct, the problem will be on the high side. If there is no voltage or the incorrect voltage, the problem will be on the low side. More often than not the problem usually ends up being a bad micro switch for the door.
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  3. #3
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    Nov 2009
    Location
    Michigan
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    Default

    Can you give me a little info on how to check the voltage?
    Do I have to remove the microwave from the wall?

  4. #4
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    No, you can check it in place but you'll need to recheck your model number for me. Nothing comes up for that one.
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  5. #5
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    Default

    I rechecked the model # MCO165UB

  6. #6
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    Default

    Unplug the microwave and then remove the top vent so you can access the screw on the top of the control panel. Remove the screw and the control panel will come off. All of the major components can be accessed from there. You'll need a volt/ohm meter to do any testing.
    OWNER RICK'S APPLIANCE REPAIR
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  7. #7
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    Nov 2009
    Location
    Michigan
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    Default

    One of the door micro switches was bad. $12 later and its working again.
    Thanks,
    Van

  8. #8
    Join Date
    Jul 2006
    Location
    Murray, Utah, United States
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    Default

    Cool!! Good job!
    OWNER RICK'S APPLIANCE REPAIR
    APPLIANCE TECHNICIAN FOR 29 YEARS
    REFRIGERATION SPECIALIST
    ONLINE SERV TECH: ApplianceBlog.com
    CERTIFIED TYPE 1; TYPE 2.....REFRIGERATION SERVICE E.S.

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