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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  • 19,396 Answers

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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Usually that is a sign that your magnetron tube has gone bad (shorted out).

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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.

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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.

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Repair shop is in order.

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

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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.

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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 http://www.geappliances.com/service_and_support/contact/

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

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

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