Question about GE Microwave Ovens
Perhaps a fluorescent ballast or transformer is letting you know it's going bad; it might just need to be reset (see the manual as well as trying to unplug/wait/replug.)
Failing that, It is simple enough to unplug it, put it on a test bench, disconnect the lamp and see if it still hums; if not the lamp, you will have a better idea what is humming with the lid off, but stay inches away of the (usually well-packed-away) high voltage feeds to the magnetron as you do. It could be that you just have junk inside the door switch and can unplug, clean out the switch interior (crumbs sneak in!) and put it back for a fix; or a stuck stirrer at the RF feed off the magnetron.
Posted on Jul 01, 2008
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