Question about GE JVM1430 Microwave Oven

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Everything works except when used today no heating

My wife used the microwave this am, but when heating lunch noticed that it did not sound as "loud". I tried it tonight and it souns like the microwave unit is not on, only the fan

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  • Anonymous Feb 20, 2009

    I have the same problem. Not sure how to fix. Thinking about throw it away.

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  • GE Master
  • 19,396 Answers


If it is working but not heating, then test the high voltage capacitor,the rectifier diode.or the magnetron. If all this are fine, test the control board.If turntable is not running check also the door switch.

The diodeand capacitors can be tested. The capacitor must be allowed discharge before testing, or you risk to get electrocuted, evenif power is off.Capacitors can get discharged by shorting their two contacts.
Before replacing the magnetron test also the control board.
Replace the magnetron if the checks and all of the high voltage component tests are good, but the unit still does not heat.



All locations, and description of this parts can be located using the diagram here: Counter top.

Parts must be tested to find out what is wrong.

Remember that microwaves are potentially dangerous devices if not repaired properly, the job must be done by a competent person.
A microwave energy leakage test must always be performed when the oven is serviced for any reason.

Regarding parts, contact the seller here to purchase parts.

You can also order from MicrowaveSvc , they also provide parts.

Posted on Apr 27, 2009

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Chances are it is a bad magnetron, but it may be a bad high voltage rectifier diode.

Some models have a 9-year warranty on the magnetron, so you may want to check with GE Customer Service at http://www.geappliances.com/service_and_support/contact/

The pop and wierd noise makes me suspect the diode has shorted.

If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

Plus there should be a very helpful "mini-manual" hidden inside the unit behind the control panel.

We're happy to help and we appreciate your thoughtful rating of our answer.

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