Question about GE Spacemaker JVM1640SJ Microwave Oven

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Microwave won't heat, light ,clock works the microwave just won't heat the items in it.

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  • GE Master
  • 3,051 Answers

HELLO THERE
when a microwave quits heating but every thing else is ok normally
investigate these 4 areas

Investigate these three areas if your microwave won't heat but you hear a loud buzzing or humming noise:
microwave won't heat, light ,clock works the - microwave_diode.jpg Power Diode

A diode is an electronic component that readily passes current in one direction only and blocks the flow of current in the opposing direction. If your microwave's diode has become defective, your microwave will not heat and you will hear a buzzing noise. Test the diode to determine if this is the cause of your problem. Replace it if it is defective.

picturena.gif High Voltage Capacitor

A capacitor is an electrical device which stores electricity. A defective capacitor may be why your microwave is not heating but you are hearing a buzzing or humming noise. The capacitor will have to be tested to determine if this is the cause of your problem. A defective capacitor will have to be replaced before your microwave will work again. Make sure you discharge the capacitor before you test it, though.

microwave won't heat, light ,clock works the - microwave_magnetron.jpgg src="http://i.fixya.net/uploads/images/microwave_magnetron.jpg" alt="microwave_magnetron.jpg" class="h_mi" /> Magnetron

A defective magnetron is the third possible cause of why your microwave is not heating, but you can hear a buzzing noise. Test your microwave's magnetron. Replace it if it is defective.

Posted on Nov 10, 2010

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Posted on Jan 02, 2017

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SOURCE: LMV1630 doesn't heat

check control panel circuit, and related circuit.

Posted on Oct 29, 2007

  • 2 Answers

SOURCE: Our microwave suddenly stopped heating. The

sounds like the magnatron went out

Posted on Nov 29, 2009

  • 140 Answers

SOURCE: GE less than 2 year old microwave runs, doesn't heat

The problem you are having is that the magnetron that actually does the heating has gone bad. The fact that everthing works fine rules out any type of bad fuse since there is only one 15amp ceramic fuse in most cases in the unit itself. The magnetron is located behind the control panel on top and has some cooling fins on it. Replacing it if you are a do-it-yourselfer is pretty easy provided you can find one at local electronic supplier or on the internet such as www.mwoparts.com if you would like to see what it looks like. It is held in place with typically 4 screws. It has two to three terminals depending on make and model and age. With everything unplugged it comes off easily enough with no desoldering or soldering to do. There is a High Voltage Capacitor and Diode that could be bad also, but without being able to check it in person it would be difficult for me to tell that they are. In my experience the magnetron is the first thing I replace and have never replaced a capacitor or high voltage diode in the past 20 years. Good luck and God bless.

Posted on Jan 23, 2009

  • 579 Answers

SOURCE: How do I fix a Jenn-Air JMC7000 that does not heat up items?

The noise is coming from the high-voltage transformer being overloaded by something shorting it out. Either the magnatron or the high-voltage capacitor and diode. Replace the capacitor and diode then if still not working, replace the magnatron. Its only affordable if you do it yourself - buy the part on EBAY - lookup "universal magnatron"
Hope ya fix it!

Posted on Jan 06, 2008

hardrocko
  • 1476 Answers

SOURCE: microwave won't heat food

I have a tip at http://www.fixya.com/support/r4223574-microwave_oven_will_not_heat which should solve your problem. It details what is wrong and how to correct it along with where to get the parts you may need. Let me know if you more help.

hardrocko

Thanks for using FixYa

Posted on Mar 03, 2010

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hello,

what this mean it that your wave has develop a disconnection problem internally from the wire what you will have to do to fix up your wave is to unscrew your wave then trace the wire down to the element (heat provider) it is silver in colour
please if there is no disconnection in it then it means that the element has gone bad then you will have to make a change of it with a better one you can get it in the store
please make sure that all form of power supply is put OFF before you can carry out this function.

Good lock ,thank you and thanks for using fixya.

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