Question about Microwave Ovens

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Microwave GE spacemaker 'jvm2070sh001', is not heating.

GE spacemaker in making humming sound and is not heating. There is also a slight burning odor.

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  • charese Dec 29, 2008

    Will this require expert repair help or can we fix this ourselves?

  • charese Dec 29, 2008

    Does this require expert home repair or can we fix this ourselves. Where is the magnatron(?) located?

  • charese Dec 29, 2008

    All the controls, vent, lights, and turntable works. Just no heat..

  • charese Dec 29, 2008

    I checked the ge recall list and this was not on it. Any other ideas?

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Here is a chart on how to test each component.but first
Use a metal ( not the shiny chrome type ) screw driver with a insulated handle to short across ( touch both at the same time ) the terminals of the high voltage capacitor to discharge it. With the microwave unplugged.
This is a common way to do this....
Microwave GE spacemaker 'jvm2070sh001', is not hea - nuker101.jpg




component1.jpg

Posted on Dec 29, 2008

  • Jerry Parmanand Dec 29, 2008

    This is a common way to do this....

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On a GE...with a louder than normal hum and not heating...most likely the mag, but could also be a shorted H.V. diode. Most of the time on those it's the mag, but you better have the diode replaced also even if it seems ok. Most GE's have 10yr warranty on the mag. If you don't know what you're doing leave servicing the high voltage circuit to the pros. Wouldn't want you to have a "shocking experience" or take the risk of exposing yourself/family to any radiation leaks.

Posted on Dec 29, 2008

  • blueextc3221
    blueextc3221 Dec 29, 2008

    The units magnetron(the device that generates the micro waves) is failed or failing, this can be DIY depending on how mechanically inclined you are.

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1. A wall-mounted microwave oven comprising:--------a body which is mounted on a wall and partitioned into a cooking cavity and a machine room;-------a magnetron which generates high-frequency electromagnetic waves and installed in the machine room;-------a control panel  which is detachably mounted on the body in front of the machine room, wherein the magnetron is mounted on a bottom surface of the machine room so as to be removable from the machine room without removing the body from the wall; and a plurality of fasteners which removable mount the magnetron and are accessible to be tightened or loosened from an outside of a lower end of the body so as to repair or replace the magnetron without removing the body from the wall.--------2. The microwave oven according to claim 1, further comprising a cover plate which is detachably attached to a lower end of the body and spaced apart from the bottom surface of the machine room.--------3. The microwave oven according to claim 2,
wherein the cover plate includes openings formed at corresponding positions of the fasteners so as to allow the fasteners to be tightened or loosened without removing the cover plate.

Posted on Dec 29, 2008

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Safety first. Unplug it and send to licensed technician. Depending on age maybe time for new one. If it's not working and something is burning it is not safe, and I am not comfortable offering ideas.

Posted on Dec 29, 2008

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Q - The microwave makes a loud "hum or buzz" noise but will not heat up the food?
A - 9 times out of 10 this is usually this is a bad magnetron, the other time is sometimes a bad high voltage diode. See components section.
.
u can get the magnetron from- repairclinic websites.

Posted on Dec 29, 2008

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  • 68 Answers

DO NOT USE THE MICROWAVE!! It has probably been part of a recall. Contact the manufacturer located inside the door.

Good Luck, Phil

Posted on Dec 29, 2008

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  • 359 Answers

More than likely a grounded out transformer for the low voltage control , usually about 80 .00 replacement in most models you must decide if worth fix

Posted on Dec 29, 2008

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  • Microwave Ovens Master
  • 19,396 Answers

It looks like the magnetron is defective and is not heating.

The magnetron must be removed, tested , and replaced.

If the magnetron is OK, then it is usually a faulty control board, door sensor problems does not smell like burning.

Posted on Dec 29, 2008

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  • Ginko
    Ginko Dec 29, 2008

    All repairs on MW oven must be done by qualified technicians, as a badly repaired microwave is potentially dangerous for your health.

    Being more specific, if you have a loud buzz and no heating this can be caused by a defective power diode, high-voltage capacitor, or magnetron.

    If you have also burning smell from inside the owen, then it is usually the magnetron, that is located inside the owen, protected by a plate held with screws.




  • Ginko
    Ginko Dec 29, 2008

    Check here a general diagram, move the mouse on the diagram to locate parts:Counter topt

    Here instead there is a specific diagram for your model.





    The magnetron is PS953878,
    and part price is $126 .

    The diode is $50 : PS239843

    Capacitor is $46 PS239120

    all parts must be tested before replacement.

    A technician can do the job for $80, ask GE.


    GE Service and Support:



  • Ginko
    Ginko Dec 29, 2008




    Register Your Appliance with GE.

    Then call them Monday - Friday: 8 a.m. - 10 p.m. ET

    Saturday: 8 a.m. - 7 p.m. ET at .

    1-800-626-2005 for general enquiries.

    Or call GE Appliance Service

    1-800-848-7620 to get a quote for the repair.

    Call GE Warranty Management

    1-800-626-2224 to validate warranty, or ask price and availability for a warranty extension.

    Refer to my previous post for details on fault, part needed and part prices.




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