Question about Maytag MMV4205 Microwave Oven

3 Answers

Dead Microwave Oven

Recently our microwave oven completely shut down after becoming overheated. It has done this in the past, but always would reset after a few hours. A day after it shut down it is still dead. Do you have any suggestions?

Posted by on

3 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: Dead Microwave Oven

Microwave shut down completely for the first time. What could be wrong. It is completely dead.

Posted on Nov 29, 2008

Re: Dead Microwave Oven

Ifpt to remove the cover I found the thermal protection device was open , ( no continuity), the fuse and oven temp sensor was good ,

Posted on Nov 08, 2008

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 20 Answers
Re: Dead Microwave Oven

Remove the top cover of oven, there should be tec screws on the bottem of unit to remove the cover, check for bad relays,fuses and fuseable links that could have finaly gone bad.

Posted on Jan 13, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Microwave would cut off after a few minutes and then turn back on but now there is no power at all.

There are few reasons for this fault, but the main is that you need to open your microwave oven and first check the Fan which is connected at the back which cools the magnetron.
If this fan fails thus results in magnetron being overheated and the thermal cutoff gets open circiut and shuts down whole power of your microwave oven.
Check your fan motor test it straight with direct power
Also check the thermal cutoff.

Let me know after you have done those checkups


May 22, 2015 | Magic Chef MCD1611ST Microwave Oven

1 Answer

I have a LG Microwave that shuts itself off before its done cooking any comments? The lights and clock are still on so its still getting power

The microwave oven has a temperature sensitive thermal fuse, if the magnetron overheats "heats food" it shuts that sector down until it cools down, "up to 30 minutes before it will reset" sometimes the thermal fuse becomes defective opening up because it has become intermittent over time. This is a tricky problem to diagnose and should be checked by somebody who is familiar with these types of devices.

Jun 05, 2011 | LG Microwave Ovens

1 Answer

OVERHEATING - Magic Chef Microwave M# MCO160S

Generic questions and comments:

Does your microwave have a "popcorn" setting and are you using it? Is there a rotating table in your machine? Is your popcorn bag elevated on top of a bowl or similar? Are you using some other "sensor" setting? Can you use straight time setting and get it to go past the 1 min 45 second mark?

On my microwave, it takes just about that much time and the popcorn is done ... BUT only if I elevate the bag to about the middle of the oven.

Let me know if this works for you.


Sep 21, 2009 | Microwave Ovens

2 Answers

Microwave shut off

try to checked the fuse if its blown.and replace a new one,check also the power cord.

Jul 05, 2009 | General Electric Microwave Oven

1 Answer

Microwave shuts down after cooking three or four minutes

Your magnetron is overheating and tripping the thermostat, which interrupts power until it cools.

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.

You can find your nearest Maytag-authorized servicer here.

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

Nov 20, 2008 | Maytag MMV1153A Microwave Oven

1 Answer

Magic chef over the oven microwave shuts off.

Is not normal for a microwave to shutdown after 4 minutes of operation.
From the info you are providing, It looks like the magnetron might be overheating causing the thermal fuse to shut it down until it cools down. There may also be a loose connection in one of the switches or a cold solder joint in the low voltage power supply.
I would suggest to check and make sure that the fans are functional, If always did; it could be that there isn't much air circulation where the appliance was installed.

Mar 03, 2008 | Microwave Ovens

2 Answers


I'd say the magnetron is overheating and the magnetron thermostat (doing its job) is opening up thew power to allow it to cool.

When it is running, do you hear / feel the cooling fan? If not, that may be the problem, otherwise, I would suspect your magnetron has failed.

They should offer a magnetron warranty beyond the normal one-year warranty.

They're at

We're happy to help and we appreciate your thoughtful rating of our answer.

Mar 03, 2008 | Microwave Ovens

9 Answers

Magic Chef MCO153UW

The cooling fan is a must!

Otherwise, the magnetron will be ruined, and that drives up the repair cost.

If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa:

You can order parts here:

To contact Magic Chef about getting an *authorized* servicer, see:

We're happy to help and we appreciate your thoughtful rating of our answer.

Jan 06, 2008 | Magic Chef CMV1000B Microwave Oven

1 Answer

Microwave oven turns off

It could be an overheating magnetron. There is a thermostat inside (mounted to the side of the magnetron) which senses excessive heat and opens up, disconnecting the power to the oven. If that's the case, unplugging it and plugging it back in will not fix it. It will come back on by itself after it cools down. That's another indication that it might be a thermostat kicking out. You might try to further characterize the failure: - happens only when cooking on full power? - also happens when cooking on a low power level? - shuts down every time you use it? - only shuts down after XX amount of time cooking? Once you characterize it more, I can make further suggestions. It may also be a bad connection on the control panel.

Nov 03, 2006 | Hotpoint RVM1435 Microwave Oven

Not finding what you are looking for?
Maytag MMV4205 Microwave Oven Logo

599 people viewed this question

Ask a Question

Usually answered in minutes!

Top Maytag Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

8795 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers


Level 2 Expert

224 Answers

Are you a Maytag Microwave Oven Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides