After about 2 weeks of use, the microwave began to make a horrible buzzing noise from the "box" in the upper right hand corner on the back. It also smelled horrible. It then proceeded to stop working completely.

Here are some troubleshooting tips

you must call to service support for check out, since it has guaranteed. call them right now. or go to ONLINE via chat.

God bless you

THe buzzing noise is most likely coming from the magneton. The magnetron is the main component of the unit (it generates the microwaves). Replaceing it can be very expensive. You may be better off getting a new oven. Prices for new microwave ovens have dropped significantly.

That is because the power transforme is located in that area and being a transformer uses iron laminations to transform the energy from the primary winding to the secondary winding/s using magnetism caused by the alternating currents. This in turn produces eddy currents that excite the iron and cause vibration to be set up, (the principle is similar in a loudspeaker). That is where the noise is coming from.
Tightening up the laminations may help but it is normal for a small amount of humming/buzzing noise dependent on the manufacturing process of the transformer.
I hope that explains it for you.

If you are referring to model number JVM1640SJ, this is a 1000 watt oven. This information is printed in the upper right-hand corner of the front page of the owner's manual.

Here's a direct link:

http://www.managemylife.com/mmh/owner_manuals/5792/GE-Microwave-Hood-Combo-L0307022?brand_name_search=jvm1640sj

If you require additional assistance, please post back and let me know. I hope this helps you.

Press and hold CANCEL/OFF button until "UNLOCK" appears on display screen.

HI, the touch pad board has failed. you will need to replace this damaged board asap. this will correct the issue.

You can check the relay and related driving circuit. If there is a short in the relay driving circuit there is chance for this type of problem. or the micro processor may be defective.

That's almost always a defective filter capacitor on the control circuit board.

We regularly repair such control units for customers nationwide by mail for $39.95 postpaid in about a week or so with a one-year guarantee.

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

Feel free to contact me directly (and please remind me of your full model number from the tag on the unit) for more information & help.

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

William E. Miller, AS-EET
[email protected]
http://www.microwavedisplay.com

I would recommend changing the diodes as well. This will usually take care of the problem.