Question about Maytag MMV4205 Microwave Oven

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Magnetron and diode

2 days after my 1 year warranty was up, my microwave went out. It was $288 when we bought it and will cost $318 to fix. Is this problem inherent with Maytag? I would like to try another one, but, I would need a 3 year extended warranty this time. This is a very classy model as long as it in warranty. Thanks! John

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  • johnke4 Sep 21, 2008

    Dear Guru,

    I think I responded in a wrong area of this website. I had a repairman out and he said the magnetron would be $135, including the diode, and the labor would be $165, because it is a difficult job. With tax , the bill would be $318. I definitely am not handy when it comes to electronics!!

    I certainly appreciate you trying to help. I was very encouraged to hear that you have had the same model for 6 years. I think I will try another one of the same. I hope this didn't jinx you.

    Thanks,

    John

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Common? No. but, sometimes things like this happen. Its called "Murphy's Law". Its funny how these applainces seem to know when the warranty expires. I have owned the same Maytag microwave for 6 years now and never had a problem with it (I've probably just jinxed myself). So...I don't have a good answer for you about reliability.

The cost to repair sounds rather expensive. Was this the cost to have a repair company perform the repairs? The reason I ask is because I did a price check for a magnetron for your oven and it only costs about $80 if you order on line. That is, if you posted this under the correct model number. You may attempt to repair this yourself and save money if you are inclined to do so. Go to searsparts direct.com and type in your model number. All the parts you need are located under the "Cavity" heading. The diode you mention is listed as item 3. The magnetron is item 6. NOTE: The diode very seldom goes bad in my experience (other repairmen may argue this point).

The choice is yours. Spend $80 and repair the oven you already have, or spend a couple hundred on replacing it. What led you to believe the magnetron was bad?

I hope you find this information both helpful and encouraging. Let me know what you wish to do.

Posted on Sep 21, 2008

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My microwave oven model no.jem23k004 want heat up food and makes a lod noise


Chances are you have a shorted high voltage diode or magnetron.

Here are some links you or someone you know can use (in order given) for 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!)


The owner's manual will tell you how long your magnetron warranty is.

You can find helpful exploded view diagrams and order parts by entering your full model number here.

If it's within the magnetron portion of the warranty (usually 5-9 years) but out of the original full warranty (usually 1 year), then GE will cover the part cost, but not the cost to visit you or the labor charge to do the work.

If it's under magnetron warranty, GE will send you the magnetron to do it yourself. Call them at 888-239-6832.

Be persistent. You may have to speak with a supervisor.


If it is not within the magnetron warranty, again you can find helpful exploded view diagrams and order parts by entering your full model number here.

If you prefer to arrange service by an authorized service center, GE Customer Service is here.

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

Oct 30, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

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With the symptoms you have, I would most strongly suspect a shorted high voltage rectifier diode or a bad magnetron, or a loose and possibly corroded connection on the magnetron's terminal.

The diode is a fairly cheap fix, and the mag will cost more.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

d:%5cele%5crepair%5cmicrowave%5cge_hotpoint%5cmini_manual_behind_grille_small.jpgdee77f7.jpg

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.

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html
(if it's not shorted or burned, it's probably okay)


http://www.gallawa.com/microtech/mag_test.html
(it may pass the checks and still be bad)

You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

If it's within the magnetron portion of the warranty (usually 5-9 years) but out of the original full warranty (usually 1 year), then your manufacturer will cover the part cost, but not the cost to visit you or the labor charge to do the work.

If it's under magnetron warranty, GE will send you the magnetron to do it yourself. Call them at 888-239-6832.

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If you prefer to arrange service by an authorized service center, GE Customer Service is here.

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With the symptoms you have, I would most strongly suspect a shorted high voltage rectifier diode or a bad magnetron, or a loose and possibly corroded connection on the magnetron's terminal.


The diode is a fairly cheap fix, and your magnetron is still under the part warranty, but you would have to pay labor.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

d:%5cele%5crepair%5cmicrowave%5cge_hotpoint%5cmini_manual_behind_grille_small.jpgdee77f7.jpg

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.

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html
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http://www.gallawa.com/microtech/mag_test.html

Since it's within the magnetron portion of the warranty (5-9 years) but out of the original full warranty (1 year), G.E. will cover the part cost, but not the cost to visit you or the labor charge to do the work.

If it's within the mag warranty, G.E. should send you the magnetron to do it yourself. Call them at 888-239-6832 with your model, serial, and manufacturing date.


If nothing else, you can save about $50-75 if you remove it from the wall and take it to a GE-authorized servicer.

You can find a GE-authorized servicer by calling GE Appliance Service at 1-800-848-7620 or here.


Accessing some components for testing and possible replacement will require you to remove the oven from the wall.

If so, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.

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

http://www.gallawa.com/microtech/diode.html
http://www.gallawa.com/microtech/mag_test.html

You can order Samsung parts here.

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http://www.gallawa.com/microtech/diode.html
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If you don't feel confident to tackle it, GE Customer Service is here.

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