Question about GE JVM1640 Microwave Oven
JVM1640AB002 mfg Feb 2000, kw= 1.58 SN DZ996205S This failed with a single buzz arcing noise (buuzzzzz-IT-ARC...SNAP! sound) similar to having a piece of metal arcing in the cooking area - but no arcing in the cooking area and no metal. It arced three times, once when it failed heating, twice after a restart, each time, no heat. Now no arcing or heat. No popped circuit breakers, just does not heat. Everything else works, display, fans, lights, turntable. I have tested the door switches, they function correctly. Reseated the connector on the magnetron, checked for broken insulation on wires, tapped the on board relays a few times Where can I get a schematic to locate the HV diode and check it before I locate a new magnetron? Or, is it even worth getting a new Magnetron? I mean, these are running for about $200-$300 retail. Thanks!
Sorry to answer so late in the game, but in case others have this problem, you can find helpful exploded view diagrams and order parts by entering your model number here: http://tinyurl.com/gv383
Posted on Sep 28, 2007
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Investigate these three areas if your microwave won't heat but you hear a loud buzzing or humming noise:
A diode is an electronic component that readily
passes current in one direction only and blocks the flow of current in
the opposing direction. If your microwave's diode has become defective,
your microwave will not heat and you will hear a buzzing noise. Test the
diode to determine if this is the cause of your problem. Replace it if
it is defective.
A capacitor is an electrical device which stores
electricity. A defective capacitor may be why your microwave is not
heating but you are hearing a buzzing or humming noise. The capacitor
will have to be tested to determine if this is the cause of your
problem. A defective capacitor will have to be replaced before your
microwave will work again. Make sure you discharge the capacitor before you test it, though.
A defective magnetron is the third possible cause of
why your microwave is not heating, but you can hear a buzzing noise.
Test your microwave's magnetron. Replace it if it is defective.
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