Question about GE JVM1660 Microwave Oven

2 Answers

Microwave oven problem

GE Spacemaker JVM1660 over the counter microwave. About 6 years old. Suddenly stopped heating. Seems to work, and makes a humming noise when it runs, but nothing gets hot anymore. Is the magnetron dead? How I can I tell what the problem may be? Thanks.

Posted by on

2 Answers

Re: microwave oven problem

The most probably is the magnetron , when the capacitor is damage the equipment blown the fuse

Posted on Jul 01, 2007

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 5,911 Answers
Re: microwave oven problem

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.

Posted on Jun 23, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Oven not heating. runs but no heat. GE Spacemaker (11 years old) Light works, table turns. Seems a little louder when turned on


Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

Microwave Oven Troubleshooting Tips



Sep 26, 2010 | GE JVM1440 Microwave Oven

1 Answer

I have a ge model JVM1850. It is 6yrs old. Today it suddenly did not heat a frozen small item thru. Does this sound repairable or do I need to consider replacement? It is above oven.

well!!!!!! its 6 years old,,,,my bet is the manatron has failed,,,and thats a pricy part to buy and have fitted,,,
you may find in the long run its cheeper to just buy a new microwave,,at least it would be a new one and not 6 years old! and not a patch up job

Jun 20, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Ge spacemaker runs but wont heat

Hi, there are three issues that will cause a no heat situation in a microwave. these issue are a failed Magnetron, busted cut-off fuse and, failed diode.

I recommend checking all these area that are located inside the microwave for faults.

The most common issue will be a failed Magnetron.

The diode and, fuse will be located on the noise filter assembly.

Jan 16, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

2 Answers

GE spacemaker microwave stopped heating

If it is working but not heating, then test the high voltage capacitor,the rectifier diode.or the magnetron. If all this are fine, test the control board.

The diodeand capacitors can be tested. The capacitor must be allowed discharge before testing, or you risk to get electrocuted, evenif power is off.Capacitors can get discharged by shorting their two contacts.
Before replacing the magnetron test also the control board.
Replace the magnetron if the checks and all of the high voltage component tests are good, but the unit still does not heat.

All locations, and description of this parts can be located using the diagram here: Counter top.

Parts must be tested to find out what is wrong.

Remember that microwaves are potentially dangerous devices if not repaired properly, the job must be done by a competent person.
A microwave energy leakage test must always be performed when the oven is serviced for any reason.

Regarding parts, contact the seller here to purchase parts.

You can also order from MicrowaveSvc , they also provide parts.

Nov 09, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Constant rattling noise during operation

possibly the "stirrer" motor - this is in the top and turns a metal reflecting ring to disperse the microwaves around the oven more evenly. About $70 on GE site for my oven.

Jun 08, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

GE Spacemaker XL 1800 - Noise while heating

Maybe you and the person from the post below could get together and help each other?

Mar 25, 2007 | GE JVM1660 Microwave Oven

2 Answers

My microwave has stopped working and switched on suddenly!!

Sounds just like a bad door switch or door switch mount. Probably the upper one. Safety info, disassembly tips, and door switch test and replacement info are all available at our Web site. See

Jan 14, 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

Not finding what you are looking for?
GE JVM1660 Microwave Oven Logo

296 people viewed this question

Ask a Question

Usually answered in minutes!

Top GE Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

8795 Answers


Level 2 Expert

224 Answers

D. E. Hev

Level 3 Expert

1059 Answers

Are you a GE Microwave Oven Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides