Question about GE JVM1631 Microwave Oven
Everything with the microwave works minus the heating up. My fuse is good. The door interlocks ohm'd out fine. The capacitor is holding a charge--in fact I discharge it and the voltage returns to ~2.2V. This doesn't seem right, though. I also get resistance between the 2 leads, too. This shouldn't be happening, right? Any suggestions are appreciated.
If the measurements you got on the high voltage transformer match what is specified on the mini-manual, then the transformer is probably okay. If there is a serious difference, that may mean the high voltage is too high, which can destroy the high voltage rectifier diode. Otherwise, you have a bad magnetron, regardless of how well it ohms out. Even though the magnetron's continuity readings are good, the magnetron can still be bad. We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Jun 08, 2009
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Posted on Jan 02, 2017
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It sounds like the magnetron may have
either failed or is not being supplied with the extremely high
voltage required to run it.
Make sure the !!!!capacitor is discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 on high resistance range for short circuit, the capacitor can fail and go short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.
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