Question about GE Spacemaker JVM1640SJ Microwave Oven

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Things are not heating up in the microwave

Everything seems to work but cannot heat anything up

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My GE Spacemaker Microwave oven does not heat up. Every other thing works. Model JVM1640

Posted on Jul 03, 2009

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

rickzilla
  • 706 Answers

SOURCE: ge microwave won't heat everything else works fine

Hello t_sumner4756,
Everything else can work perfectly fine but if it doesn't generate microwaves to heat your food than it is not working ( you knew that anyway).. Unfortunately, and in most cases when you microwave stops working in that manner..the components at fault are either the Magnetron, Filament PS or a High Voltage Capacitor..What that means is that you are probably better off just replacing the entire appliance rather than attempting to repair it. If it is a year old or less, bring it back to where you purchased it and have them replace it.. I am sure that is not what you wanted to hear but when the cost to repair exceeds the cost to replace... it just isn't worth repairing.. Plus.. there is an element of danger associated with these kinds of repairs...
Regards,
Rick

Posted on Nov 22, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: microwave oven

This is usually caused by a bad door switch or loose door switch mount but other common causes of a failure to heat are:

- loose connection at the magnetron
- problem or loose conneciton 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

Posted on Nov 18, 2007

  • 75 Answers

SOURCE: everything works except the cooking part/no heating/turntable not turning, help!

you may have gotten a power surge and that can cause some funny things to happen, 1st is there power to the oven, 2nd if so there may be an internal fuse protector built in to the oven, check with the manual for anything of that sort listed. if not you may have to take it in and have it repaired by a pro. there is a lot of voltage in these ovens and unless you know what you are doing a person could get hurt

Posted on Jan 03, 2009

bestdarngood
  • 3037 Answers

SOURCE: Microwave doesn't heat anything

Sounds like the magnetron has failed. This is the component that produces the microwaves that heats the food.

The cost of the magnetron is about 95% of the cost of a microwave oven. 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

Posted on Apr 26, 2009

ginko
  • 19396 Answers

SOURCE: Our Jenn-Aire Model JMV8196AAS Microwave is not heating anything.


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.If turntable is not running check also the door switch.

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.

Posted on Apr 27, 2009

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Everything seems to be working but it doesn't heat anything


Sounds like the magnetron has failed. This is the component that produces the microwaves that heats the food.

The cost of the magnetron is about 95% of the cost of a microwave oven. 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

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Q - The microwave makes a loud "hum or buzz" noise but will not heat up the food?
A - 9 times out of 10 this is usually this is a bad magnetron, the other time is sometimes a bad high voltage diode. See components section.
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 Q - The microwave display counts down and the inside light is on,  but nothing is heating and the fan is not running.
A - This most commonly is a bad door switch, other possible problems are a faulty relay or solder joint on the power module, but a bad door switch is most common.
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A - YES, the fan cools the magnetron and electronics, take the microwave in for service, most fans are not too expensive to replace.
Q - My microwave blows the fuse inside itself as soon as I push the start button.
A - Usually a shorted high voltage capacitor...see components section.



Mar 06, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Everything works except the cooking part/no heating/turntable not turning, help!


you may have gotten a power surge and that can cause some funny things to happen, 1st is there power to the oven, 2nd if so there may be an internal fuse protector built in to the oven, check with the manual for anything of that sort listed. if not you may have to take it in and have it repaired by a pro. there is a lot of voltage in these ovens and unless you know what you are doing a person could get hurt

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probably your power grid is out and have some leak of power....
the best for you is not to fix it but replace your microwave, sorry
;)

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