Magic Chef CMV1000B Microwave Oven Logo
Posted on Aug 14, 2009
Answered by a Fixya Expert

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Magic Chef Model #MCO160UW

About 2 years old. Microwave turns on by itself and then runs for 3-1/2 minutes and then shuts off. Turns on again soon after and does same. No buttons work at all (not even cancel) anymore. Only way to shut off is to open door. Since they didn't recall, will never buy one in future!

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  • Posted on Dec 29, 2009
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Call 888-775-0202 Magic chef they will replace the part free of charge even if its not longer under warranty

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  • Anonymous Dec 29, 2009

    call 888-775-0202 magic chef they will replace the part even if its not under warranty

  • wnbklb Aug 15, 2011

    Just called the number for an out of date warranty, and MC is indeed fixing the problem. It's a failed switch membrane (been a common problem with this model) and they're sending the part in advance of sending a repair technician to our house to replace it.

  • lauriesimon May 29, 2014

    I just called the same number and was told I needed 4 parts totaling about $133. They did not offer to fix, or replace parts as it is out of warranty!

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  • Posted on Aug 25, 2009
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I have the same model and it has started doing the EXACT same thing. I've read in a few places on the internet about some other identical problems with magic chef microwaves. I'm glad my house isn't haunted!! I've been keeping it unplugged when not using it. I just read on another site that it's due to a "failed membrane keypad" Mine is still under warranty so, I'll just pass that information to them. If yours isn't under warranty, a repair guy should probably know how to manage it after hearing that name of the problem.

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  • Master 4,088 Answers
  • Posted on Aug 14, 2009
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Try unplugging the machine for a few minutes, then retry. If still acting-up, then the controller probably needs to be replaced. Any chance that one of the control buttons is stuck down or feels different than the others. That would confuse the controller with a constant signal.

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Magic chef microwave turns off after about 3 minutes then it just resets again after about 5 minutes

make this test and fix it. God bless you
  1. Interlock switch If your microwave is turning itself on, the first thing to check is the interlock switch. This is usually the first thing to malfunction that could cause this issue. If the interlock switch is bad then it will need to be replaced.
  2. Main control board If your microwave is turning itself on and the interlock switch is still working, the probable cause is the main control board. If the control board is defective it will need to be replaced.
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Have a magic chef mco160uw microwave. Had a recent

No! there is no reset, the power surge has more than likely damaged the keypad controller, and on the back is a circuit board that has the microprocessor with additional components that controls the vital areas of the microwave oven. If that is gone, it is cheaper to replace than to repair.
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If unit heats your problem is in the control board, most commonly would be one of your door switches
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The problem will be a bad relay, a component that drives the relay, or a broken trace on the circuit board.

This blown trace happens a lot when the cooktop lights blow.

We regularly repair such control units for customers nationwide by mail for $39.95 postpaid in about a week with a one-year guarantee.

Feel free to contact me directly (and please remind me of your full model number) for more information & help or see our Web site.

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

William E. "Ed" Miller, AS-EET
[email protected]
http://www.microwavedisplay.com
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Shuts down for 5 minutes

I have the same problem with my new magic cheff over the stove microwave oven. I call magic chef and they gave me the 800 number for the service center (1-800-775-0202). When I described the problem they told me to just put a plate under the popper and this wouldn't happen anymore. I haven't tried it yet but here's hoping.
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MICROWAVE TURNS ON BY ITSELF AND RUNS FOR 3.5 MIN EACH TIME

My Magic chef Microwave also starts by itself the the keyboard locks up.
We have had this unit for 4 years with no problems. I called Magic Chef and they are sending me a new brain for the unit and then someone will come to my home and repair it. NO CHARGE! I am very pleased that they are backing their product like this. God Belss America
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Microwave turns on by itself

You have a shorting keypad. This can be very dangerous and result in a fire.

So until it is repaired, please leave it unplugged or leave the door open when it;s not in use, and please do not leave it running unattended.

If you (or someone you know) might want to replace it yourself, I have uploaded a handy guide with pictures showing you what's typically involved.

You can usually find Magic Chef parts here.

If not, please reply back with your model number so we can help you.

If you would like to have us do this for you, we do that for $39.95 plus part costs.

Feel free to contact me directly (and please remind me of your model number) for more information & help.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
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My microwave magic chef mco160uw just keeps turning on by itself. The microwave is only about 5 months old

The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

If it still fails, you have a failed keypad.

This can be dangerous, and you should keep it attended to when in use (as with any microwave) and unplugged when not in use.

Since it's less than one year old, it should be fully covered under warranty. I'd suggest contacting the manufacturer to get it fixed free.

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

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