Question about GE Spacemaker JVM1640SJ Microwave Oven

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Ge microwave spacemaker XL 1400

Hello this is Dennis, I have a spacemaker XL1400 made by GE, it sounds normal but yesterday the heat stopped, i have the access panel off and i see the fan turn on when i shut the door, I have been reading alot of no heat solutions and am not sure which one to follow can you help?

Posted by Moffit on

  • 21 more comments 
  • cmcatlanta Mar 02, 2008

    Spacemaker XL1400 MIcrowave Oven just stopped heating. Everything
    else is working fine. Any Suggestions? Posted 3-2-08

  • Anonymous Mar 02, 2008

    everything works fine except it will not heat foods.

  • Rlrobel Mar 15, 2008

    I guess this is what happens to GE Spacemakers (1400). SOunds good, looks good, clock works...but no heat. What could it be?

  • SickOne Mar 24, 2008

    GE Spacemaker XL 1400 - everything works except it will not heat and it has a funny smell coming from it now when I try to heat anything.

  • No Heat Mar 26, 2008

    I have a GE space maker, don't know the model # but like all are saying here. Everything functions normally except for the fact that it does not heat food. My Microwave is 8 years old and I have never had a problem with it. I don't have the ability to fix it myself and I am sure it would not be cheap to have someone fix it. So I was just going to go buy another one? Should I or would it be cheaper to have someone fix it. The new one I am looking at is $200. Thanks,

  • Anonymous Mar 29, 2008

    I have a spacemakerxl microwave JVM1441 it is 3.5 years old everything works but does not heat food. help

  • Anonymous Apr 10, 2008

    I've had my GE XL1400 JVM for 10 years now and it just suddenly stopped
    heating the food. Everything else works fine. I called the
    service number and was told I'd have to pay $80.00 just to have a
    serviceman come out and diagnose the problem. When I asked the
    service rep what she thought the trouble was, she answered she did not
    know, I'd have to have someone look at it. I'm kindov bummed
    about it as I've had it for so long, I dont even remember how much I
    paid for it. She told me trip the breaker and that should help
    with the problem. It didnt

  • Anonymous Nov 23, 2008

    no heat

  • Anonymous Jan 23, 2009

    I know this is much after the others, but my GE Spacemaker XL 1400 just stopped heating. Should I replace or can I even do it myself. It is a built in above the stove. It is 7 years old. Thanks.

  • Anonymous Mar 02, 2009

    I have the same issue the microwave runs but does not heat the food. It is about 8 years old as in some of the issues reported on the previouse page.

  • heartinflag Mar 04, 2009

    I have a spacemaker XL 1400 that quit heating. When you turn it on the light comes and the fan but it does not hear anything. We put a cup of water in for 2 minutes and it got it to lukewarm.

  • Anonymous Mar 04, 2009

    mine doesn't head. I'd love to save this thing since it's relatively new but who knows.

  • adrianita_he Mar 15, 2009

    It sound normal but dosent heat.

    What shoul I do.

  • ericandstef Mar 22, 2009

    My GE Spacemaker wont heat. Everything else works fine.

  • b-engle Mar 23, 2009

    every works right except it wont heat the food.

  • annasariyah Apr 06, 2009

    My GE Spacemaker Microwave Oven came with the house we just bought. We thought it was fine because the fan, light, turntable, etc all work... except for its inability to perform its intended task..HEATING FOOD (which we of course found out later). Basically, I bought a nice turntable display case for muffins...

  • Anonymous Apr 07, 2009

    every thing works but it wont heat

  • opqr Apr 10, 2009


  • boji2 Apr 11, 2009

    Same as the others. Just stopped heating, has funny smell. Turntable, lights, fan, timers etc. all working fine. Is this worth repairing?

  • jwcooper987 May 13, 2009

    Magnetron went out of unit. Lights on bottom of unit went out earlier. Unit is 7 years old. Quoted $350 to replace magnetron. Said no thanks, and shopping for something different.

  • Anonymous May 14, 2009

    stop heating all else works fine like fan turntable etc

  • Anonymous May 17, 2009

    Ditto here: GE Spacemaker XL1400 stopped heating today.

  • shawn Oct 30, 2012

    My spacemaker light want go off, I have unpluged it but still have the same issue, can someone help



5 Answers

Russ Tremonte

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Housing i.e. Door handle & touch pad housing cracked. Second set and still junk. Am I the only one with this problem

Posted on Dec 22, 2009



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First guess: thermosensor. This is a black item the size of a dime and 3/8 inch thick located on the wall of the oven inside the pad area. Test for continuity. There may be more than one fuse involved. Some of these units have weak relays (tell me about it!). You can replace the heat relay with a 12 automotive relay if you're good...if not, you'll have to replace the board.

I did two relays...and then needed a new board for other reasons on my own unit. Rebuilt boards are available online.

Posted on Dec 19, 2007


Mark Handyman

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Clean the Board with a warm cloth as some cleaning detergents affect the keyboard. second- if food has ever been burnt in microwave, thus leaving a "stained" or odor while being used. Microwave repair can be dangerous! You must unplug the microwave before attempting to repair it because they use very high voltage on certain internal parts. After the microwave is unplugged you must also discharge the capacitor before servicing because the high voltage that the microwave operates on is stored in the capacitor. To manually discharge the capacitor, place an insulted handle screwdriver between the diode connection of the capacitor and ground. It should discharge itself but always discharge it manually!
remove sides to microwave(most slide after screws are removed/set unit on stool to remove) when sides are off use a warm cloth with no detergent to wipe off parts and fan blower. If unit is still not working with clening off residue from componets, then the megatron on the unit is bad. This part cost around $100 for most. here is a link to video removing the sides and megatron

Posted on Feb 22, 2013

chris mcneill

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If no heat is the problem....change the diode on the capacitor...its probably shot..cost ya about 30-40 bucks

Posted on Jan 15, 2013


I did research and found out that the GE Magetetron (sp) are notorious for going bad. I called and it was still under warranty - 10 years, but i needed to pay for labor. That ran me $180. The part was $125 but would have taken my time to install, plus I didn't want to deal discharging the capacitor.

Posted on Apr 14, 2008

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