Question about GE JVM1660 Microwave Oven

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A few weeks ago our ge JVM1660 quit heating and ge sent me a replacement magnetron. I've heard that the capacitor will discharge after the unit has been unplugged for 24 hours... Mine has been unplugged for a week... Is it really safe now (i don't have a voltmeter). Should I short out the capacitor? How? Can that be some safely? Thanks.

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Hi newer microwave ovens have a built in resistor to bleed the power from the capacitor once it is unplugged. Saying this it is always a good safety practice to discharge it.

The factory approved method is to purchase a 2 Watt, 20,000 ohm resistor and touch it across the terminals on the microwave capacitor to discharge, doing this with a tool like pliers so you are not touching the metal tips of the resistor.

Most technicians will use pliers that have insulated handles and touch the tips to the capacitor. I am not condoning that, just letting you know.

Posted on May 11, 2010

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A few weeks ago our GE JVM1660 quit heating and GE sent me a replacement magnetron. I've heard that the capacitor will discharge after the unit has been unplugged for 24 hours... mine has been unplugged...


I don't know where you got the information that the high voltage capacitor takes 24 hours to discharge. The capacitor will actually discharge after a few minutes. If in doubt as to whether or not a capacitor is still charged, however, you should short the capacitor to discharge it. You do this by fashioning yourself a grounding probe:

1. Take a screwdriver and a set of alligator clips with a wire.

2. Connect an alligator clip to either end of the wire.

3. Connect one clip to the screwdriver and the other end to equipment ground.

4. Short the screwdriver across the capacitor terminals.

If the capactor casing is grounded (mounted to the equipment chassis) you only need to take a screwdriver and touch each across each terminal to the capacitor case.

CAUTION: Make sure the unit is UNPLUGGED prior to servicing any components inside the HV network. The HV network consists of the HV Capacitor, Magnetron, HV Diode and HV Transformer.

If you still have questions, please post back and let me know. I hope you find this information helpful.

Mar 17, 2010 | GE JVM1660 Microwave Oven

2 Answers

Smelled like something was burning and stopped heating. Turntable and lights work


March 2012 - GE does not support customers mad.gif

I have GE microwave with a failed Magnetron. It is emitting large sparks. Upon removing the magnetron I found that the sparks left residue where they are leaking from the cylindrical shaped piece on the end of the Magnetron.

The Magnetron is under warranty.

BUT

GE WILL NOT HONOR THEIR WARRANTY AND SEND A MAGNETRON.
GE HAS SENT OUT HUNDREDS OF MAGNETRONS TO CUSTOMERS - SEARCH ONLINE TO SEE THIS IS TRUE.

I called GE PARTS, GE support and GE consumer relations department. They changed their policy two weeks ago and require a service technician to replace the part.

THE COST IS $220 FOR THE REPAIR TECHNICIAN.

Since I already removed the part the service technician would have to put in 3 screws and plug in the cable...FOR $220...I PAID $229 FOR THE MICROWAVE NEW!!!!

DO NOT BUY GE.
DO NOT BUY GENERAL ELECTRIC.

GE DOES NOT SUPPORT IT'S WARRANTIES UNLESS YOU ARE WILLING TO PAY THE SAME AMOUNT THAT YOU PAID FOR THE PRODUCT!!


Further research:

GE Microwaves can spontaneously turn on and start a fire - see Consumer Reports web page here:
http://www.consumerreports.org/content/cro/en/consumer-reports-magazine-march-2012/kitchen-fire-safety.html

Further evidence GE retroactively changing their warranties:
http://www.complaintsboard.com/complaints/ge-california-c197693.html

Nov 30, 2009 | GE JVM1650 1000 Watts Microwave Oven

1 Answer

Microwave does not heat


There is also very likely a fuse for the magnetron circuit as well. A failed magnetron could well destroy the diode that supplies the high voltage DC for it.

Oct 17, 2009 | GE JVM1660 Microwave Oven

1 Answer

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Sounds like the magnetron has failed. This is the component that produces the microwave that heats the food. The cost of the magnetron is about 95% of the cost of a microwave . Most people don't, for this reason, replace the magnetron, they replace the whole oven which is probably what you will end up doing. There is a possibility that the circuit that provides power to the magnetron is faulty and you need to take it apart, find the proper electrical leads and test them with a volt meter. To do this you have to remove it from its mounting and take it apart. It is a fairly lengthy process however.

Benjamin

Jun 23, 2009 | GE JVM1660 Microwave Oven

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fan may have a lot of vibration. or the MAGNETRON is kicking back a jolt. or your slamming the door too hard.

May 12, 2008 | GE JVM1660 Microwave Oven

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This just happened to ours as well. Apparently the magnetron (device that creates radio waves that heat the food) is broken. I'm trying to pry the darn thing out of our kitchen now so I can replace the magnetron. Look for this part WB27X10489 on Google. I found it on ebay for $65. If it fixes the problem I'll post again.

Aug 18, 2007 | GE JVM1660 Microwave Oven

2 Answers

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If your microwave is doing everything, but heating it could be any one of the following components: Magnetron HV Capacitor HV Diode HV Transformer This network works in conjunction to produce the high voltage required to heat. Taking live voltage measurements is dangerous and not recommended. You can, however, do resistance checks on the components with the unit unplugged to see if you can isolate the problem any further. The HV Diode should be mounted somewhere on or near the HV capacitor and will read an open in one direction and a relative short in the other. If you put a meter on the capacitor you should see a varying resistance as the capacitor charges and discharges. There should should be a wiring diagram inside your control panel with the resistance readings for the primary and secondary windings of the transformer and the filament of the magnetron. In a nut shell, you probably have either a bad magnetron or a bad diode. Those are the two components that fail more frequently. Of course, double check all your interconnecting wires too. Good luck and let me know if this helps.

Jun 22, 2007 | GE JVM1660 Microwave Oven

3 Answers

GE SpaceMaker Microwave suddenly stops while heating


I had same problem last week. My GE JVM1650 Spacemaker stopped after a few seconds of heating. Owned 16 months, manufactured Jan 2005. It was the magnetron, which was replaced yesterday. The magnetron has a 10-year warranty, but I had to pay $161.00 for labor by a GE technician. The call-out fee was waived at my request. I don't know what that amount would have been, but I can't believe the $161.00 for what was about 1/2 hour labor once diagnosed. Good Luck!

Sep 20, 2006 | GE Spacemaker JVM1640SJ Microwave Oven

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