Question about GE Spacemaker JVM1640SJ Microwave Oven

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I have a GE Eterna Spacemaker model number EMO3000HSS05

Recently I noticed that the microwave sounded like it was only operating on half power. In other words, the microwave sounded a little quieter than usual and it appeared to be operating slowly. Upon using the microwave a few more times, the power completely shut off. The power has since returned and I have normal use of the clock, lights and exhaust fan, however, I have the same "half power" problem. Any suggestions and can I fix this problem myself?

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  • Anonymous Dec 29, 2008

    Our microwave GE Eterna Spacemaker model number EMO3000HSS05 has the same problem. First it made a strange humming sound (like it was operating at half power, grumbling almost) and then eventually today the power just stopped.

  • William Miller
    William Miller May 11, 2010

    Please reply back with your model number so we can help you.

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5 Suggested Answers

MicrowaveSvc
  • 8871 Answers

SOURCE: My GE Profile Eterna Spacemaker also shuts off ramdomly

WARNING: The "technique" of using "anti-static paper" or anything else to try to shield the control circuit board is not a fix, but a band-aid at best...

This problem is almost always due to a defective or loose magnetron causing electrical interference and disruption in the control circuit board.

The shielding may keep the interference out of the controls, but it's still being emitted, and the magnetron will eventually go bad.

Details covering some previous models are in GE's bulletin here. Even if your model is not on the list, the same problem can occur.

If your magnetron was recently replaced, it may have loose mounting nuts or bolts or maybe the wire mesh RF gasket was not installed or got pinched.

NOISY MAGNETRON TEST (c) 2009 William E. Miller prototech@usa.net

One way to test it is to do the following:

1. Unplug the microwave or turn off its breaker.
2. Open the door, then detach the control panel as shown in the video at http://www.microwavedisplay.com and swing it down, but without disconnecting the wires. If you have any trouble getting the grille off once the screws are removed, slide the hood vent grille to the left about 1/4", then then pull it forward. On some models there are L-shaped clips that fit into a slot to hold bottom of the vent.
3. Plug the microwave back in.
4. Make sure neither you nor anyone else reaches in behind the control panel. There will exposed high-voltage connections.
5. Put a few cups worth of water in a microwave-safe container and place it inside the microwave.

6. Shut the door.
7. Run the microwave for about 1 minute or so on full power. (Time Cook > 1 > 0 > 0 > Start, e.g.)
8. If it does not fail, try it several more times.
9. When the water boils, change the water and try again.


NOTE:
If your model does not have a door handle, you will need to unplug the oven and reattach the control panel to be able to open the door.


If it still does not fail, I would recommend that you put it all back together and keep using it until it fails more consistently, then repeat this test.

While a microwave should never be left running unattended under any circumstances (as your owner's manual will tell you) it's even more important when one is exhibiting a failure or any odd behavior. So play it safe and stay with it while it's running!

If you or someone you know want to replace the magnetron yourself, you will need to remove the oven from the wall.

If so, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.

You can download GE owner's manuals and installation instructions here.

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.

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

If it's within the magnetron portion of the warranty (usually 5-9 years) but out of the original full warranty (usually 1 year), then your manufacturer will cover the part cost, but not the cost to visit you or the labor charge to do the work.

Sometimes they will send you the magnetron to do it yourself. Call them at 888-239-6832.

Be persistent. You may have to speak with a supervisor.


If it is not within the magnetron warranty, you can find helpful exploded view diagrams and order parts by entering your full model number here.

If you prefer to arrange service by an authorized service center, GE Customer Service is here.

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

Posted on Jun 28, 2009

MicrowaveSvc
  • 8871 Answers

SOURCE: GE SPACEMAKER XL MICROWAVE OVEN JVM1440

Assuming that your internal cooling fan is working, I would suspect that your magnetron is failing.

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

There should also be a "mini-manual" 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.

I would check the cooling fan, then suspect the magnetron.

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

Posted on Nov 16, 2008

jyackle5
  • 8197 Answers

SOURCE: how do I set the clock on a GE Spacemaker microwave oven?

You can get the manual here.

http://www.retrevo.com/s/GE-JVM1640SJ-Microwaves-review-manual/id/1080ci954/t/1-2/

But usually you just press the clock button to set

Good Luck and Please Rate Fixya!

Posted on Jan 10, 2009

  • 686 Answers

SOURCE: GE Microwave Spacemaker JVM1640BB sounds like it

SOUNDS LIKE THE MAGNETRON WENT BAD IT'S ABOUT A 100 AND SOME DOLLAR PART

Posted on Apr 13, 2009

scottowa
  • 87 Answers

SOURCE: Burning smell and won't heat.

If it buzzes real loud it's probably the high volyage diode. However some times if it smells it's the transformer. Usually the diode is a cheap fix ~$10.00 but this model the diode is $50. It's number 50 on the link below. Let me know how it works out or you need anything else.

http://www.searspartsdirect.com/partsdirect/getSubComp.pd?modelNumber=JVM1440BH01&productCategoryId=0123370&brandId=0432&modelName=MICROWAVE&diagramPageId=00001&documentId=G0312014&pop=flush

Posted on Apr 19, 2009

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