Question about GE Spacemaker JVM1640SJ Microwave Oven
We see (and repair) this a lot. The problem is on the control panel, which
we regularly repair nationwide by mail for $39.95 postpaid with a one year
This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.
This can often also affect the exhaust fan, cooling fan, turntable, and/or inside light operation, too.
Details of our service are at our Web site, along with a video showing how to remove a typical over the range control panel assembly in under 5 minutes.
Feel free to contact me directly with your brand, full model number and symptoms.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Aug 23, 2010
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Posted on Jan 02, 2017
Tips for a great answer:
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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.
SAFETY IS PARAMOUNT
This is a job for a professional but if
you are safety clued up, here's instruction.
Make sure the !!!!any capacitors are discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 or moving coil meter on high resistance range for short circuit, (DVM's won't show the fault!), 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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