Question about Magic Chef 1.6 cu. ft. Over-the-Range Microwave in White MCO165UW

3 Answers

Magic chef mco165uw has no power

Checked the fuse on the noise filter it's good, no lights or anything

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3 Answers

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  • 2,113 Answers

I didn't know they had noise filters! :)
Then you have blown a fuse. Check inside the oven chamber and look for missing powder paint or signs of arcing, if so dispose of the microwave. If the inside is good remove all the screws and remove the cover. Replace the fuse. If the magnetron was making louder noises prior then replace the magnetron. Since the fuse went the giant capacitor is likely bad. While the cabinet is open make sure to look for burned wires, check the continuity of thermal cutoffs, and check the main circuit-board for burned traces or components. The relays in most electronics are known for arcing (spot welding) and staying in the wrong position. Tap them hard with the back end of a screwdriver. During all of this use safe electrical practices by having the power cord unplugged. The capacitor could still have a high charge on it so be careful.

Posted on Nov 28, 2013

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Check the thermal protectors to make sure they all have continuity. Also, look for loose or burned connections on them.

Posted on Jul 17, 2016

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Here is a scan of the wiring diagram for MCO165UW microwave. It was inside my microwave behind the touch panel.

magic chef mco165uw has no power - magic-chef-mco165uw-no-power-lq0kzmk2bocuhaktcgma5r4t-2-0.jpg

Posted on Jul 14, 2016

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

MicrowaveSvc
  • 9047 Answers

SOURCE: my magic chef micro does not work. I replaced the

In many brands, there is a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, & testing.

At
our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

Some questions to help you or someone you know troubleshoot it:

When you hit "Start" to microwave, do the inside light, cooling fan, and turntable all come on?

If not, then you probably have a bad door switch or door switch mount and should see these files:

http://www.microwavedisplay.com/safety.txt
http://www.microwavedisplay.com/disassembly.txt
http://www.microwavedisplay.com/doorsw.txt

If the inside light, cooling fan, and turntable are all coming on, then the problem is in the high voltage section, and then the next questions arise:

Any unusual noises? Is it louder or quieter than usual?

We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are operating here.

A loud buzz, hum, or groan is usually a shorted high voltage rectifier diode, but a sound like gurgling into an empty coffee mug is one symptom of a failed magnetron, and yet the mag can be bad without that sound.

If there's no unusual noise, it may just be a bad connection at the magnetron.

Here are some links you or someone you know can use (in order given) for high voltage section test help, but read the safety warnings first:


http://www.gallawa.com/microtech/diode.html
(if it is NOT shorted or burned looking, it's probably fine)


http://www.gallawa.com/microtech/mag_test.html
(continuity can be good even though mag is bad!)


http://www.gallawa.com/microtech/xformer.html

Accessing some parts may require you to pull the oven from the wall and remove the cover.

If so, the installation instructions are very handy, and it's best to have

two people since the microwave can be heavy and awkward.



For more help from Magic Chef / Ewave see here or their contact page or order parts here.

You can download owner's manuals for many Magic Chef models here.

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

Posted on Dec 07, 2009

techcrazy
  • 72 Answers

SOURCE: One year one month old and the magic chef microvave mc0160ub die

Hi this is tech crazy

The above mentioned link will be of great use to you.Just check out with it and do the necessary steps in your microwave oven

http://www.ehow.com/how_112488_diagnose-microwave-oven.html


Hope that it helps you a lot

Please do rate me on the above said solution

Posted on Feb 03, 2009

  • 1 Answer

SOURCE: Replace light bulb in Magic Chef MCD1611

Remove cover and look for light. Special torx is required to loosen screws.

Posted on Feb 21, 2009

heatman101
  • 43501 Answers

SOURCE: Magic Chef microwave oven will not work. No

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

Microwave Oven Basic Troubleshooting Tips

heatman101

Posted on Nov 12, 2010

  • 71 Answers

SOURCE: my magic chef microwave, model

Fuses are a common failure part. If the fuse, you can purchase ceramic types from Electronix: http://www.electronix.com

Posted on Oct 28, 2011

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Then you have blown a fuse. Check inside the oven chamber and look for missing powder paint or signs of arcing, if so dispose of the microwave. If the inside is good remove all the screws and remove the cover. Replace the fuse. If the magnetron was making louder noises prior then replace the magnetron. Since the fuse went the giant capacitor is likely bad. While the cabinet is open make sure to look for burned wires, check the continuity of thermal cutoffs, and check the main circuit-board for burned traces or components. The relays in most electronics are known for arcing (spot welding) and staying in the wrong position. Tap them hard with the back end of a screwdriver. During all of this use safe electrical practices by having the power cord unplugged. The capacitor could still have a high charge on it so be careful.

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