Question about GE Spacemaker JVM1640SJ Microwave Oven

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Ge jvm1440wh01 everything is working but won't cook no heat

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  • Anonymous Mar 21, 2008

    I have an MQS0803W almost 16 years old and all of a sudden no warnings when I turned it on the noise got louder and it goes through the time required but no heat. What should I do?

  • Anonymous May 10, 2009

    No heat no cooking, but everything else works.

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  • GE Master
  • 8,820 Answers

Generally, the most common causes of a failure to heat are:

- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose connection on the control unit circuit board
- bad magnetron or other high voltage part (such as a shorted diode)

If you or someone you know decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

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

Also, since you have a GE, there should also be a "mini-manual" hidden inside the unit behind the control panel, which is very helpful when troubleshooting.

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

Posted on Mar 18, 2008

2 Suggested Answers

  • 1214 Answers

SOURCE: ge jvm 1653 won't heat

You've got a problem in the microwave circuit, which could be one or more of the following components -

1) HV diode
2) HV Capacitor
3) HV transformer
4) Magnetron

I am leaning to the diode, but it would take further investigation to determine for sure. Diodes are cheap, as if the capacitor, and replacing those first would not necessarily be in vain if it turns out to be the transformer or magnetron. And I would be most inclined to say it's the magnetron before I would think transformer.

Reply back what you find or if you have more questions.

Posted on Feb 04, 2009

  • 123 Answers

SOURCE: GE JVM1440WH01 Will not heat, everything else

It could be a number of things, Burnt connections between the magnetron, Capacitor, Diode and transformer, Heater connections loose or burnt, Transformer, Capacitor Diode or Magnetron US. You need to strip it and find out if you are getting about 2000volts to the Mag, Are you getting approx 5volts across the heater terminals?? NOTE that the 2000 Volts can remain in the cap indefinitely and the voltage is LETHAL. IT WILL KILL YOU if you don`t take precautions. Ian

Posted on Aug 06, 2009

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It could be a number of things, Burnt connections between the magnetron, Capacitor, Diode and transformer, Heater connections loose or burnt, Transformer, Capacitor Diode or Magnetron US. You need to strip it and find out if you are getting about 2000volts to the Mag, Are you getting approx 5volts across the heater terminals?? NOTE that the 2000 Volts can remain in the cap indefinitely and the voltage is LETHAL. IT WILL KILL YOU if you don`t take precautions. Ian

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Is not cooking


sounds like the magtron is gone out.
Call GE answer center 1-800-626-2000 ask for tech help. Have you model # off the data plate ready.

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Ge jvm 1653 won't heat


You've got a problem in the microwave circuit, which could be one or more of the following components -

1) HV diode
2) HV Capacitor
3) HV transformer
4) Magnetron

I am leaning to the diode, but it would take further investigation to determine for sure. Diodes are cheap, as if the capacitor, and replacing those first would not necessarily be in vain if it turns out to be the transformer or magnetron. And I would be most inclined to say it's the magnetron before I would think transformer.

Reply back what you find or if you have more questions.

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

Oct 04, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

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