Question about Maytag MMV4205 Microwave Oven

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Maytag Microwave OTR MMV4205BA just started having problem with it going through a power cycle when cooking. I.e., I put some food in there, press 30 seconds, it comes on for a few seconds, and then shuts down, screen goes blank, and then the screen powers up and goes into the "PLEASE TOUCH CLOCK AND SET TIME OF DAY". I tried unplugging the system for 10 seconds, and the problem still occurred. I tried heating at a lower power setting (e.g., type 30, then power, then 2, then start), and that didn't cycle the power this time. Don't know yet if this is a consistent solution. The problem doesn't always occur. This morning it worked fine. Last night it was problematic. It does still heat food appropriately. Nothing else in the kitchen on the same circuit power cycles when the microwave does it, so I'm assuming it is something in the microwave.

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  • fixya265 Dec 07, 2010

    Yeah, I was assuming it was the control panel.



    Now it fails the same way on any setting, yet occasionally, the lights will dim for a bit, and then return to normal, and it will continue functioning normal for the remainder of the time on the cooking cycle.



    So I wonder if a discrete part (diode, capacitor, etc.) is failing, yet not totally failing. Or perhaps there is a loose solder joint? If this is likely the case, I'd rather rather tackle this before investing $200 in a new control panel.




    Suggestions?



    Thanks,

    Henry


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Hi, on the Maytag MW oven, it is possible that one of two things is hapenig:
One would be an erratic door latch switch, that might be cutting the power to the control panel(digital display)and that is why the panel kind of does the power reset, but I am more inclined to a control panel that is starting to loose one of its components, the fact itself that you can set a lower power level for cooking and the oven goes through the cycle normally is a sure indicator that the control panel is involved. Out of the two possibilities the switch is the most economic. Both the switch and the control panel are available from www.partsclinic.com, just type in your model number in the search window, and a full list of available parts and pictures are displayed. I hope this helped and good luck.

Posted on Dec 03, 2010

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heatman101

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