Question about Magic Chef MCD990W Microwave Oven

2 Answers

Having problems after the microwave stop and i push the door button the lights on the display goes off and then it will not work again

Posted by joel bartlett on

  • joel bartlett Apr 19, 2007

    please help me out asap

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2 Answers

Anonymous

I encountered same problem, and all interlock switches tested o.k. I remembered that problem started after turntable plate was off kilter. After a couple fuses, I decided to disconnect turntable motor - it works now.

Posted on Jul 02, 2007

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  • Magic Chef Master
  • 9,179 Answers

Sounds like you may have a bad door switch or misalignment which has blown your internal fuse. If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info (as well as a text file which helps in diagnosing and repairing door switch problems) at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk

Posted on Apr 23, 2007

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1 Answer

Tappan microwave has se or 5e on diplay wont push buttons


this a problem a dust in the control board keypads, You must open the keypad, and clean any connector with contact cleaner specially the ribbon cable or plastic and use pencil eraser for to fix the corrosion, dust, and try again.
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GE spacemaker microwave turns off during cooking and display goes black


Step 1:


Door Switch




If the microwave runs for a few seconds and then shuts off, a door switch might have failed intermittently. Check each of the door switches for any signs of overheating, arcing, or burning. Also check each of them for continuity. Replace any of the switches that is visibly damaged or that only has continuity intermittently


mwswitchtest2.jpg

Step 2:

Main Control Board




If the microwave runs for a few seconds and stops there may be a short circuit in the main control board. Check other components first, these boards are often misdiagnosed.


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If the microwave runs for a few seconds and stops the touchpad and control panel might be defective. There are several other components that can cause this problem, be sure to check any other components before replacing this board.

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If the microwave runs for a few seconds and stops the touchpad might be at fault. This is not common. Generally speaking, if the microwave display is working and some of the buttons respond correctly but some don't, the problem is with the touchpad.

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If the microwave runs for a few seconds and stops the high voltage transformer might have an intermittent short. This is not common. Check other components related to the microwave symptom first.

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If the microwave runs for a few seconds and stops the thermostat might be defective. Watch our video on testing thermostat

Step 3:

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Step 4:

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Step 5:

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Step 6:

use the DVOM tester and fix it. God bless you

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Whit the cover removed.

Note:
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1 Answer

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1 Answer

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