Question about GE JES1288SH Convection/Microwave Oven

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Cooling fan stopped running.

The units cooling fan runs whenever cooking. Today it started normally then the cooling fan stopped running, but the oven kept cooking. How do I verify whether fan is bad or something more serious.

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  • William Miller
    William Miller May 11, 2010

    Do you mean the hood / exhaust / vent fan?

    (Because the internal cooling is supposed to run when you're cooking)

    Please reply back with your brand and model number so we can help you.

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6 Suggested Answers

MicrowaveSvc
  • 8820 Answers

SOURCE: GE Microwave problems after HV capacitor replacement???

The rectifier diode could indeed be bad. But first I would want to know what value (in uF) the old one was and what is the value of the new one? If they're too far off, the difference in the capacitive reactance could throw off the "tuning" of the circuit. The uF value of the capacitor is optimized in relation to the other components used in the system. Of course, you'd also want to be sure your new cap is at or slightly above the working voltage rating of the old one, too.

Posted on Jan 05, 2007

MicrowaveSvc
  • 8820 Answers

SOURCE: GE JVM1190 microwave oven light comes on, but no the FAN or "microwaves"

If it were just just not cooking, I would suspect the magentron. But since the fan is also not working, I think you have a bad door switch. If you or a friend decide to work on it, we have *critical* safety and disassembly info at our site, as well as other specific troubleshooting information and help. In my professional opinion, no one should work on a microwave unless they are fully informed and aware of the deadly hazards and necessary precautions. You can find safety and disassembly text files (as well as a text file which helps in diagnosing and repairing door switch problems) at http://www.microwavedisplay.com You can find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

Posted on Apr 10, 2007

  • 1 Answer

SOURCE: GE SPACEMAKER OVEN DOES NOT COOK

I have a JVM1430 microwave, it has a 9 yr warrantee on the magetron, I called customer relations 800 386 1215 and they sent a new magnetron at no charge. Now it all works

Posted on Mar 31, 2008

MicrowaveSvc
  • 8820 Answers

SOURCE: microwave running although not turned on

Thought I had answered this, but this is usually caused by either a bad door switch, a loose door switch mount, or possibly a problem on the control panel.

Even though a door switch clicks, it may still be bad inside. Its continuity must be checked.

Door switch or mount trouble can be caused by slamming the door or by opening the door while it's cooking without hitting the Stop pad first.

If you someone you know decide to look into it, we have critical information on safety, disassembly and door switches at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

There should also be a "mini-manual" hidden inside the unit behind the control panel, which is very helpful when troubleshooting.

If you think the problem is on the control panel, we repair these nationwide by mail for $39.95 postpaid in most cases.

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Apr 02, 2008

rickzilla
  • 706 Answers

SOURCE: Magnetron cooling fan

Are you sure it is the internal blower and not the VENT fan ?

Posted on Sep 01, 2008

  • 197 Answers

SOURCE: Model jvm131h002 Stopped working. no power or

yes, at the back of the microwave there are 4 or 6 screws, take them out and then pull the cover follow the cable( the one you connect to the outlet) going to the inside of the microwave inside you will see the fuse change it with the same size, it is a slow burn fuse

Posted on Aug 05, 2009

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2 Answers

We have just purchased a Kenwood microwave/combination oven and are concerned there may be a problem. When the food has finished cooking and the microwave beeps it seems there is a fan or something still...


In most modern combination microwave ovens, if not all, there is a fan that comes on after use to cool the magnetron and cavity down. This is quite normal but if you still have doubts, contact Kenwood's web site and send them a question.
Hope this halps to put your mind at rest.

Nov 27, 2010 | Microwave Ovens

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I have a GE SpacesaverXL model JVM1350BW. It does not heat up. The interior light, surface light, fan, clock, keypad all work normally. When a cooking mode is chosen and START is pressed there is a...


I wouldn't worry about the sensor error right away.

Sometimes that's just caused when the door is opened before steam could be detected or steam was not detected in the maximum amount of time.

Once it's all working again, if you still get the error regularly, it may be a bad humidity sensor.

If the internal cooling fan IS running when you try to cook AND the oven is not heating, it's probably a failed secondary interlock relay on the control circuit board.

If the internal cooling fan is NOT running when you try to cook AND it's not heating, the bottom door switch is probably the culprit.

Here's is a file on checking and replacing door switches.

We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are working.

Listen to that very carefully, and listen to yours to see if the cooling fan is working.

When I say internal cooling fan, I do not mean the hood vent exhaust fan which you can turn on and off manually.

I'm instead talking about the internal fan which comes on automatically whenever you microwave.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

dee77f7.jpg

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.

Let me know if I can help you further.

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

Aug 22, 2010 | GE JVM1350BW/WW/AW/SY Microwave Oven

1 Answer

The microwave shuts off and will not re start until completely cooled down.


I would suspect that the magnetron is overheating and that the magnetron's thermostat is cutting power until it cools down.

It may be overheating because the internal cooling fan is not running when you're cooking.

When I say internal cooling fan, I do not mean the hood vent exhaust fan which you can turn on and off manually.

I'm instead talking about the internal fan which comes on automatically whenever you microwave.

It is vital that the cooling fan runs, or the magnetron will soon be destroyed.

It may also be that your filter is clogged, or your exhaust duct work is clogged.

FixYa's Web site is currently not notifying us when replies to our Clarification Requests are posted, so please reply directly to me with your full number from the tag on the unit so I can help you with free do-it-yourself tips or an estimate.

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

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

Feb 09, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Occasionally, the unit growls with a loud noise while operating. I stop it and when the frowling stops, I restart it and it works normally for a while. then it will do the same thing again. It cooks...


This is probably lack of lubrication of either the cooling fan or the turntable if it has one.

If the cooling fan fails totally, the magnetron will fail so service the unit immediately.

Jan 09, 2010 | Whirlpool MH3184XP Microwave Oven

1 Answer

Fan will not turn off after cooking time stops


Please note that FixYa is not currently notifying us Experts when Clarification Requests are answered.

To allow us to help you effectively (at no charge), please post a
NEW problem to FixYa, and please include your brand name and the full model number from the tag in or on the unit, your symptoms, as well as the answers to these questions:

- Which fan is it, the internal cooling fan, which comes on automatically whenever the unit is microwaving? Or the hood vent exhaust fan which you can turn on and off manually?

- Does it run all the time, or just after cooking?

- Does the inside light or turntable also remain on when they should shut off?

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

Oct 08, 2009 | GE Microwave Ovens

2 Answers

The fan will not stop running,says locked


The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

If that doesn't work, leave it unplugged for about 5 minutes.

If it's still running, is it the hood vent exhaust fan (which you can normally turn on and off manually) or the internal cooling fan (which normally comes on automatically whenever you microwave)?

NOTE: The FixYa system is not currently notifying me when folks reply to my posts, so please contact me directly with your brand, model and symptoms for more FREE help & do-it-yourself advice.

Please include this URL, too:

http://www.fixya.com/support/t2929351-fan_will_not_stop_running_says_locked

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

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

Sep 12, 2009 | Whirlpool Microwave Ovens

1 Answer

The unit turns on but the it's thermal fuse/breaker shuts it off


This can be caused when the internal cooling fan is not running or by a magnetron that is failing.

When I say internal cooling fan, I do not mean the hood vent exhaust fan which you can turn on and off manually.

I'm instead talking about the internal fan which comes on automatically whenever you microwave.

We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are operating here.

It is vital that the cooling fan runs, or the magnetron will be destroyed.

If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa.

You can find helpful exploded view diagrams and order parts by entering your full model number here.

There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

dee77f7.jpg

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

Feb 13, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

The fan starts up and runs on its own and we are cooking


That is a normal safety feature.

That's only covered in a very subtle note in the hood fan section of your owner's manual:

NOTE:If the temperature gets too hot around the
microwave oven, the fan in the vent hood will
automatically turn on at the HIGH setting to cool the
oven. It may stay on up to an hour. When this
occurs, the fan can not be turned off.

If for some reason you don't have your owner's manual, you can download it here.

Enter your model number as MV1610ST with no spaces.

You will need the free DJVU viewer to view or print your manual.

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

Dec 14, 2008 | Goldstar MV-1615 Microwave Oven

1 Answer

GE JVM1870 Spacemaker Microwave Fan Malfunctioning when Cooking


There are two different fans in this model, as with almost all over the range microwaves.

One is the hood vent exhaust fan, which you can turn on and off at will, and which should always be on when cooking on the stove top.

This fan does not automatically come on when you cook with the microwave.

The fan which should always be on (automatically) when you are microwaving is the internal magnetron cooling fan.

If the cooling fan fails, the magnetron can overheat and the thermal cutout (TCO) / thermostat will open, killing the power to the oven. Ideally, this protects the magnetron from being destroyed.

If the thermal device is a thermostat, it will reset when it cools down, and the oven will work.

If the thermal device is a true thermal fuse, it is a one-time device and if it blows, it will have to be replaced.

If your cooling fan is bad, it needs to be replaced before using the microwave.

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

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

Sep 16, 2008 | GE JVM1870 Microwave Oven

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