Question about GE JVM1440 Microwave Oven
The part that you did not replace is the problem with the oven, the magnetron. It typically fails and shorts out, causing the oven to make a loud humming noise. Not worth fixing since the cost of the magnetron is typically as much as a new oven. Sorry that you spent your time an money replacing the wrong parts.
Posted on Jul 14, 2010
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Posted on Jan 02, 2017
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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.
Nov 09, 2010 | GE Spacemaker JVM1640SJ Microwave Oven
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