Question about Magic Chef CMV1100 Microwave Oven

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Microwave magic chef

The microwave runs but doesn't heat and sometimes its works for a month or so without a issue, i don't know if one of us are pressing something somehow we shouldn't but none the less this problem is on going, thanks for your time

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  • bgaassoc Feb 16, 2009

    My microwave won't cook. Lights work, sounds like its on. When I bring out what I want to cook its still uncooked.



    Thank you,

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  • 1,214 Answers

It sounds like a microwave circuit problem, and it's very likely a bad rectifier or capacitor. It might be the magnetron.

I would stop using the unit and get it repaired before a more expensive component is damaged.

Posted on Jan 28, 2009

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1 Answer

Magic chef not heating


Make sure that the program controller is working if not check power - step down supply, the pads are responding- if not faulty pads- or the door switches, if the switch contact are not good then it will not trigger the processor to switch on the waveguides. If the lights or fan work without any display or action of program being triggered to start then it can be a possible fault on the main board or the processor. Sometimes insect secretion can short the board and display panel and so the processor can work in such an erratic manner. If so clean, solder and reset the board. Now identify the parts by clicking this link: http://www.espares.co.uk/advice/microwave/a/5/141/identifying-microwave-parts.html

If there is no heating please do not switch on unless you have confirmed the fault. It is possible that the Magnetron is faulty, the temperature cut off is faulty or the main capacitor is short. It is also quite possible that insect can get into the oven and create soft spots. When you switch on these will create a short and make the voltage jump and in the long run damage the magnetron. Check this link to know how a microwave works:

http://www.espares.co.uk/advice/microwave/a/5/1443/how-a-microwave-oven-works.html

So Remove cover after disconnecting , check for dirt/moisture in the cabin, if so wipe clean and dry, check the magnetron and area clean and use an jet air to clean off. Check the wave guide covers, if food had deposited
then it must be checked or replaced. See link:
http://www.espares.co.uk/advice/microwave/a/5/1146/how-to-replace-a-microwave-guide-cover.html

Now keeping clear of the microwave, switch on; use a cup of water inside to test.
If you notice any sparks shut off as the magnetron or the main HT capacitor can be faulty. replace with same type.
If there is heating without any issues, you can use the microwave safely

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Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

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heatman101

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Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

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heatman101
uitot

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I just installed an over the range Magic Chef microwave and all controls seem to work properly however, it will not cook or heat anything. Am I correct in assuming the magnatron is faulty.


Sometimes there is a separate fuse for the magnatron circuit. Sometimes the fuse is the culprut, and sometimes it is the control board. Usually when magnatrons fail, they smoke or go bang or both.
I would look for a blown fuse first, and then look for a factory authorised service center.

Best of luck.

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Check the door safety interlock switches.

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To obtain warranty service on your Magic Chef or E-Wave product within the initial one year warranty period please complete the form here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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