Question about GE Spacemaker JVM1640SJ Microwave Oven

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Frigidaire Microwave OTR FMV145KS2 not heating

I have a Frigidaire Microwave OTR FMV145KS2, and is't not heating either food or liquids

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  • Johnny Moretti Jun 17, 2009

    Thanks for your reply. See below answer to your questions.

    When you hit Start to microwave, do the inside light, cooling fan, and turntable all come on? >>> Yes
    Any unusual noises? Is it louder or quieter than usual? >>> No

  • William Miller
    William Miller May 11, 2010

    When you hit Start to
    microwave, do the inside light, cooling fan, and turntable all come on?




    Any unusual noises? Is
    it louder or quieter than usual?



    We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are operating here.

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1 Answer

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  • GE Master
  • 9,098 Answers

Chances are it's a defective high voltage rectifier diode or magnetron.

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.

Frigidaire Microwave OTR FMV145KS2 not heating - d:%5cele%5crepair%5cmicrowave%5cge_hotpoint%5cmini_manual_behind_grille_small.jpgdee77f7.jpg

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

http://www.gallawa.com/microtech/cap_test.html

You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

You can download Frigidaire owner's manuals and installation instructions can be downloaded through the links here. where you can also locate a nearby authorized servicer if you choose.

The magnetron has a 10-year part warranty, but you would have to pay labor.

If nothing else, you can save about $75 by taking it to the shop yourself.

Good luck.

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

Posted on Jun 17, 2009

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