Question about GE Spacemaker JVM1640SJ Microwave Oven

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Humming sound and burning smell.

Microwave won't heat up and is making a humming sound. There is a burning smell when i turn it on.

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Re: humming sound and burning smell.

I had the same problem. I replaced the wave guide/cover and everything was fine. It is a piece of cardboard inside the microwave that covers the magnetron. Mine was saturated with grease, and was damaged by the fire. If yours is still intact and not that greasy, You can carefully remove it. Clean both it and the area inside the cavity with an alcohol based cleaner. If there is so much as a pin hole in the cover it will need to be replace. When grease somehow gets behind the cover an arc is formed which causes the problem.

Posted on Dec 13, 2007

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