Question about GE JVM1631 Microwave Oven

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Microwave makes deep humming sound and doesn't heat

I have a GE JVM163 that isn't heating at all. When I turn it on, it sounds normal for about two seconds then suddenly the "hum" changes sound and gets a little deeper and louder. Any ideas?

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Your magnetron that actually does the cooking is making that humming sound. That part needs to be replaced before it starts blowing your fuse inside the microwave. That part is the one located on top behind the control panel of your microwave and is about the size of a persons hand (sometimes smaller sometimes bigger). With everthing unplugged you can take the cover off and see it. It has some cooling fins on it and is held in place with only three to four screws. There are three to four wires that come out of it and go to only a couple of places one of them being a large capacitor that is about three to four inches long with terminals at its top. Find a magnetron at a local tv repair shop (reputable), a local electronic supply house (they can order you one) or on the internet. They cost from $25 to $60 depending on size of microwave. If you can do it yourself you can save about $40 to $50. Let me know how it goes. Good luck.

Posted on Jan 22, 2009


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