Question about GE Spacemaker JVM1640SJ Microwave Oven

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I have a GE Spacemaker xl 1400. The lights on the

I have a GE Spacemaker xl 1400. The lights on the bottom wont work - burned out. I replcaed them and they still wont work. Where is the circuit board?

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  • 9,098 Answers

We see (and repair) this a lot. The problem is on the control panel, which we regularly repair nationwide by mail for $39.95 postpaid in about a week or so.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan, cooling fan, turntable, and/or inside light operation, too.

Details of our service are at our Web site, along with a video showing how to remove a typical over the range control panel assembly in under 5 minutes.

Feel free to contact me directly with your brand, full model number and symptoms.

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

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

Posted on Sep 20, 2009

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Came in today; our spacemaker ge microwave xl 1400 would not light up, turn table would not turn, no date or time or anything registering on panel


  1. Check the circuit breaker.
  2. Verify that the outlet to oven has power (plug in a trouble light or other small device).
  3. If you have power there, take the oven off the wall, remove the top cover and check whether you have power at the controller board. (If you don't know where to put the voltmeter leads, take the oven to an appliance tech to perform these tests.) If you power at the low voltage transformer, the board has failed.
  4. If not, check the three thermal cutouts and the fuse. One thermal cutout is located on top of the oven, most likely under the light bulb cover. The next is fastened to the magnetron, and the last is down near the bottom just behind the controller module. If any of these is open, the oven will not work. If the fuse is blown, look for a short circuit before replacing it (check the varistor on the controller board first). The varistor is listed as a separate repair part; don't get soaked for a controller board if this is bad.

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1 Answer

My spacemaker microwave XL 1400 no longer heats up? Would should I do? The light works, however. Please help! Thank you :-)


Likely a magnetron problem. I know they want approx. $150 just for the replacement part. It sits toward the back of the unit. Unless you are in love with your existing unit, it's likely time for it to visit the curb.

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It sounds like the main transformer has failed. It would be cheaper to replace the whole microwave than repair this one. Sorry to be the bearer of bad news. Hope this helps. Good luck.

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This sounds like a thermostat or magnetron tube
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Most likely a bad turntable motor - check with www.martinmicrowave.com for a replacement .

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Microwave oven does not heat anything. Clock, turntable, lights work. I turned the turntable off while the oven was cooking--heard a noise, now it doesn't heat anything.


Spacemaker XL 1400 worked for 7 years.Yesterday, no more heat. Also plastic door damaged.
will try Panasonic or something commercial

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IF THE UNIT IS STILL UNDER THE 90 DAYS BRING IT BACK TO
WHERE YOU GOT IT BEFORE IT STARTS A FIRE!!

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5 Answers

GE spacemaker xl 1400, lights on bottom won't work


To Person who answered Best Solution above,
This worked nicely thank you.
After removing my circuit board the long silver strip was intact, however where it makes the turn about quarter inch, the solder or foil seam had a break in it which I filled-gap with solder.
My guess is if the "foil" or thin 2" long strip is serving as a fuse, it would still melt again even with my solder on the shorter section, in event of overload. Also seen on the plastic area directly behind where the circuit board would mount, and where the "foil" was blown, was a small blackened area as evidence of the blown foil. 2 new bulbs and all is well again Thanks!

Jan 01, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

GE Spacemaker XL 1400 Microwave


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

If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and
disassembly information at our site, linked 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

Nov 27, 2007 | GE Spacemaker JVM1640SJ Microwave Oven

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