Question about GE Spacemaker JVM1640SJ Microwave Oven

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GE Profile Spacemaker model JVM166OWB-005 works but not heating?

Everything is working normaly but it is not heating? No weird noises, lights work, turn table works, timer works,clock ect... But it does not heat anything up. Please help. I really can not afford to have someone fix it and would like to fix it mayself. Please let me know what you think may be wrong and where to find it in the microwave to replace it. I fixed the turntable myself about a year ago.

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With the symptoms you have, I would most strongly suspect a shorted high voltage rectifier diode or a bad magnetron, or a loose and possibly corroded connection on the magnetron's terminal.

The diode is a fairly cheap fix, and the mag will cost more.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html
(if it's not shorted or burned, it's probably okay)

http://www.gallawa.com/microtech/mag_test.html
http://www.gallawa.com/microtech/xformer.html

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Dec 28, 2008

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