Question about Kenmore 63792 Microwave Oven

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My microwave Kenmore model 665.60601000 2001make a strange noise

The noise came from the magnetron area. It is like a very intense vibration. Sound like a intensive electric discharge. Somthing like that Im in PR USA

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  • wildandfree7 Feb 15, 2009

    Just noticed having an issue like the strange noise one listed. When the mircowave is to be heating, a loud vibration or hum occurs. It kicks in and out on defrost and runs constant while in normal operation

  • Anonymous Apr 17, 2009

    Kenmore model 665.60601000 making a loud humming noise. What is wropng with it?

  • William Miller
    William Miller May 11, 2010

    Can you post a video with sound?



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Test the high voltage capacitor,the rectifier diode.or the magnetron. If all this are fine, test the control board.

The diode and capacitors can br tested. The capacitor must be alloweddischarge before testing, or you risk to get electrocuted, even ifpower is off. Capacitors can get discharged by shorting their twocontacts.
Replace the magnetron if the checks and all of the high voltage component tests are good, but the unit still does not heat.

All locations, and description of this parts can be located using the diagram here: Counter top.

Parts must be tested to find out what is wrong.

Remember that microwaves are potentially dangerous devices if not repaired properly, the job must be done by a competent person.
A microwave energy leakage test must always be performed when the oven is serviced for any reason.

Regarding parts, contact the seller here to purchase parts. (here in UK).

Posted on Apr 27, 2009


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1 Answer

Makes a really loud buzzing noise during operation

Unit uses a Magnetron and likely a power board called an inverter to run it. Someone would have to open the unit in a way where they might pinpoint where the sound is coming from and then take action--does not of course sound normal or good to me.

Dec 10, 2012 | Samsung SMH1622W

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Frigidaire microwave popped and know it wont heat and makes a strang noise

The magnetron is the likely problem, especially when one of the classic signs is a popping sound.

Apr 25, 2012 | Microwave Ovens

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I have a Kenmore Elite Microwave (built-in), Model # 565-61589 that was manufactured in 2001 and installed in 2002. It just began making a grinding sound and produced a burning smell when started. Can you...

Could the "grinding noise" be arcing? If yes, then the problem could be the Magnetron.The Magnetron can be replaced but at approximately $75, It is rarely worth the effort. It will be at least twice that amount to have a repair shop do it.

Nov 29, 2017 | Kenmore Microwave Ovens

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Is it time to replace the microwave if it makes a loud vibrating sound followed by a pop which is followed by the sound of broken glass?

Yes it is time to replace it, the magnetron has failed and there are two more parts of concern, the high voltage capacitor and diode are also a factor. The high voltage capacitor and diode work with the magnetron to produce the high voltage that heats the food. The vibrating sound is further evidence the magnetron is culprit.

Feb 10, 2011 | Kenmore 69399 Microwave Oven

1 Answer

My Kenmore 721.626222 which I have had about 6 years, runs but does not heat. There is also a strange smell - something like a burning smell.

When the oven does not heat, the problem is usually due to the magnetron failing. It the part that generates the microwaves that heat the food. It fails by shorting out causing a loud buzzing noise. The burning smell is the being magnetron overloaded due to the short. It not worth fixing since the replacement cost of a magnetron is close to the price of a new oven. Sorry.

Feb 09, 2011 | Kenmore 62622 Microwave Oven

1 Answer

Noise & vibration

Sounds like Magnetron MAY have shorted or an HV rectifier shorted.

Also there is a resonating cap for the current limiting trnansformer typically. That may have shorted.

Repair shop is in order.

Oct 07, 2009 | Kenmore 60659 Microwave Oven

1 Answer

Runs okay, but makes loud noise when running

You dis-assemble the waveguide. Now try running it again, if noise still persists then the magnetron has failed. Get a new unit.

Nov 11, 2008 | Kenmore 60652 Microwave Oven

1 Answer

Loud vibrational noise

First of all, if the metal of the waveguide above the magnetron is compromised, the oven would have to be scrapped.

If it's intact, then it can be cleaned and sanded thoroughly. Then you can apply some high-temperature appliance paint, available from places like Wal-Mart, Lowe's or Builder's Square.

In some models, there were "underperforming" magnetrons which had to be replaced along with stirrers (antennas) and high voltage didoes that also had to be replaced to electronically match the new type magnetron.

If this is the case, your "new" magnetron may not be the new type, but an old type, so the problem would just repeat.

Some suppliers and repair centers may unknowingly keep old version parts in stock.

I would check back with the servicer or supplier, but your magnetron should have a 5 to 9 year warranty.

If it is a design defect, there may be a recall or "campaign" under which you can get this taken care of.

I would call Sears customer service.

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

Jul 28, 2008 | Kenmore 62642 / 62644 / 62649 Microwave...

2 Answers

My microwave sounds funny

This answer assumes yours is a GE JVM1640, as posted.

If not, please reply back with your correct brand and model.

Most of the time, this is the magnetron, which would have a 9-year warranty.

I would advise you to contact GE Customer Service at

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

Dec 07, 2007 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Kenmore 62622 (model) -microwave-loud noise -no heating

dis-assemble waveguide and clean thoroughly. try again. if no-go then failed magnetron. get new unit.

Jun 08, 2007 | Kenmore 62622 Microwave Oven

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