Question about GE Spacemaker JVM1640SJ Microwave Oven
Please advise. The keypad works, but when cooking is started the unit buzzes, there's an odor, and no heating.
It's very likely the high voltage transformer or the magnetron.
If it's within the magnetron portion of the warranty (usually 5-9 years) but out of the original full warranty (usually 1 year), then your manufacturer will cover the part cost, but not the cost to visit you or the labor charge to do the work.
Some manufacturers will send you the magnetron to do it yourself. If nothing else, you can save about $75 by taking it to the shop yourself.
Here are some links you or a friend can use for test help, but read the safety warnings first:
You can usually find helpful exploded view diagrams and order parts by entering your full model number here.
There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Sep 05, 2008
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