I have a Kenmore Elite over the range Microwave Model # 665.61682101 It just starting having this zapping/buzzing noise when it starts-what it it?

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Aug 12, 2011 - 10 posts - ‎2 authors
My Whirlpool MT4155SPS-2 microwave oven has recently started to buzz loudlywhen operated. The sound is getting louder and more frequent ...

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Most Kenmore appliance manuals are available from Manage My Life. For the 665.60622000 microwave and range hood User's Guide, see http://www.managemylife.com/mmh/owner_manuals/5728/KENMORE-Microwave-Hood-Combo-L0211211?brand_name_search=665.60622000 . This will load the PDF in the browser window if you have a PDF reader plugin. If you wish to download the manual, the direct link is http://www.managemylife.com/mmh/lis_pdf/OWNM/L0211211.pdf . You need Adobe Reader or a similar program to read the file. If you want only the Installation guide, start here: http://www.managemylife.com/mmh/owner_manuals/search?query=665.60622000 . Unfortunately, you will need to print your own copy from the PDF. (Alternatively, go to a print shop with the file on a flash drive and they will print the file for a fee.) Sears no longer has the manuals available for sale at Sears Parts Direct, http://www.searspartsdirect.com/partsdirect/part-model/Kenmore-Parts/All-Products-Parts/Model-66560622000/0582/0123370/P0080166/00001?blt=06&prst=&shdMod= .

I hope this helps.
Cindy Wells

It sounds like you have a shorted cook relay on your control circuit board.

That can usually be repaired more economically than replacing the circuit board.

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

This is a strong indicator the magnetron is fried, also! this is the most expensive part to replace in the microwave oven, and in most cases cheaper to replace the whole unit.

un-plug it, it is not safe. i am thinking that the transformer is making the noise, probably because of the moisture.(cheap asian electronics) it could catch on fire.

It depends on if it is just a loose component that needs tightened up or if it has started failing. it will require some investigation and trial and error to resolve. I have had some success in resolving vibrations and some were real challenges. It is a matter of isolating the noise maker and seeing what can be done.
Eric

I have just replaced the magnatrton for a Kenmore microwave model # 665.606.5900 as before replacing the part there is still the buzzing sound and non-heating

Your problem is due to the "magnetron" arcing to the wave guide within the microwave. Picture someone arc-welding stuff together inside the microwave casing, that's essentially what's happening. It is a fire hazard and you should stop using the microwave immediately. As far as I know, there isn't a recall on that particular model (though there was on another similar Kenmore/Whirlpool model) so if it's out of warranty, you're out of luck.

By high-pitched, you mean it is not that same frequency as when it's cooking? Is the tone near or the same as the beep you hear when you press a key? Please post a little more information so we can help better.