Question about Jenn-Air JMV8208AAS Microwave Oven

1 Answer

Microwave oven defective

The stirrer fan located in the ceiling of the oven started to sparkle flames and melted the stirrer fan cover. I was wondering what the role of the fan is and how can I fix it. Thanks in advance.

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It's actually a stirrer. Its purpose is to scatter the microwaves to ensure even cooking, similar to the way a turntable does in other models. Having a stirrer instead of a turntable allows for a bigger dish.

 

The sparking is usually caused by deposits or grease or food debiris which heat, reheat and arc.

 

If the oven is used very long without the cover, that debris and grease can get onto the magnetron and ruin it.

 

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

Posted on Oct 12, 2007

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1 Answer

Samsung microwave ovens model mo1650ca turntable stopped turning


Are the internal cooling fan and stirrer (in the ceiling of the oven) running when you cook?

The turntable gets its 21VAC power from a tap on the cooling fan motor, and it's controlled by a relay on the circuit board.

So it's important to know if those other two motors are running, too.

You will have to temporarily remove the stirrer cover from the ceiling to see if the stirrer is turning when you cook.

For some weird reason, this model's service manual is not in all one piece. So you have to download all the sections separately:

http://www.microwavedisplay.com/MO1650WA_XAA.0000051600.E.01.pdf

http://www.microwavedisplay.com/MO1650WA_XAA.0000051600.E.02.pdf

http://www.microwavedisplay.com/MO1650WA_XAA.0000051600.E.04.pdf

http://www.microwavedisplay.com/MO1650WA_XAA.0000051600.E.05.pdf

http://www.microwavedisplay.com/MO1650WA_XAA.0000051600.E.06.pdf

http://www.microwavedisplay.com/MO1650WA_XAA.0000051600.E.07.pdf

http://www.microwavedisplay.com/MO1650WA_XAA.0000051600.E.09.pdf

http://www.microwavedisplay.com/MO1650WA_XAA.0000051600.E.10.pdf

http://www.microwavedisplay.com/MO1650WA_XAA.0000051600.E.14.pdf

http://www.microwavedisplay.com/MO1650WA_XAA.0000051600.E.16.pdf

You can find handy exploded views and order parts by model number here.

If you need circuit board repair, we do that for $39.95 in most cases.

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

Nov 27, 2012 | Samsung Microwave Ovens

1 Answer

Not heating


Remove the outer cover (pull the power plug first) and look for a blown fuse. If found, replace the high voltage diode and the 'stirrer' (a fan-like device located within the sheet metal wave-guide near the opening in the cooking cavity where the microwaves come into it). This stirrer has a plastic bearing that frequently arcs over and permanently shorts out the microwaves which blows the fuse. If no blown fuse is found, look for a loose or defective door-interlock micro-switch.

Nov 17, 2009 | Kenmore 61652 Microwave Oven

1 Answer

The inside fan cover started peeling and broke, i can't use the oven and need help!


its the fan inside the oven cavity on top, its part # AP3671492 and is a G.E. part# called the Cover,Stirrer Fan still manufactured

Sep 19, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Plastic melted inside oven, dripping from ceiling Kenmore 721


The round peice in top of unit is a cover for the stirrer wich moves waves around for even cooking. The reason for it melting is almost certainly there is not enough paint in cavity and waves are shorting out to metal.CALL the manufacturer and depending on age of unit they may replace it free

Apr 21, 2009 | Microwave Ovens

1 Answer

Turntable wont turn.


On some Samsung/GE models, the turntable motor and stirrer motor are powered off a tap on the internal cooling fan motor and in such cases they will be marked "21V AC".

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 turntable and stirrer won't work, and magnetron will soon be destroyed.

A quick test is to remove the stirrer cover in the ceiling of the oven. The owner's manual tells you how, and you can download that here.

Then run the oven for several seconds with a cup of water inside while watching the stirrer blade in the top. It should turn very slowly.

If it does not turn or is jerky, it or the cooling fan is not working.


Also, we have a sound clip of what a microwave should sound like when the cooling fan and everything else is working here.

The cooling fan's absence will be notable after you hear the clip.


The turntable system otherwise consists of the motor, the coupler, the turntable support with rollers, and the tray.

You can see and hear a video of how a turntable motor should sound when you rotate it by hand.

If the cooling fan is good, but yours won't rotate or it sounds like it's grinding, etc., you may have a bad motor or plastic coupler.

To replace either, you need to unplug power, then remove the bottom cover of the oven.

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.

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.

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

Accessing some parts may require you to pull the oven from thew wall and remove the cover.

If so, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.


You can download GE owner's manuals and installation instructions here.

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

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Feb 09, 2009 | GE XL1800 1100 Watts Microwave Oven

1 Answer

My panasonic microwave model NN T99)SAF is now missing a part. The part is on the inside of the microwave. It is a thin flat piece that is a cover over an opening for a fan or something . . .it is about 4"...


That is called the ceiling cover, also known as the waveguide cover, stirrer cover, or spatter shield.

It will definitely need to be replaced. It provides important protection for the magnetron.

You will need the following parts:

B20554U00AP ceiling cover
A90804U00AP canoe clip

The best place to order parts for this brand is Encompass (formerly Tritronics). Or you can call them toll-free at 866-779-5835.

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

Jan 30, 2009 | Panasonic NN-T990SA Microwave Oven

2 Answers

Turntable in GE microwave stopped turning.


On some GE models, the turntable motor and stirrer motor are powered off a tap on the internal cooling fan motor and in such cases they will be marked "21V AC".

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 turntable and stirrer won't work, and magnetron will soon be destroyed.

A quick test is to remove the stirrer cover in the ceiling of the oven. The owner's manual tells you how, and you can download that here.

Then run the oven for several seconds with a cup of water inside while watching the stirrer blade in the top. It should turn very slowly.

If it does not turn or is jerky, it or the cooling fan is not working.


Also, we have a sound clip of what a microwave should sound like when the cooling fan and everything else is working here. The cooling fan's absence will be notable after you hear the clip.

The turntable system otherwise consists of the motor, the coupler, the turntable support with rollers, and the tray.

You can see and hear a video of how a turntable motor should sound when you rotate it by hand.

If the cooling fan is good, but yours won't rotate or it sounds like it's grinding, etc., you may have a bad motor or plastic coupler.

To replace either, you need to unplug power, then remove the bottom cover of the oven.

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.

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.

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

Accessing some parts may require you to pull the oven from thew wall and remove the cover.

If so, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.


You can download GE owner's manuals and installation instructions here.

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

Jan 04, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

My mother's GE microwave oven has a large burn mark on the ceiling of the unit. She noticed some plastic parts on the floor of the unit. She bought the combination microwave-stove about four years ago and...


That would be the stirrer assembly. It consists of the stirrer motor, stirrer blade, and stirrer cover.

Without the stirrer in place, the oven will not cook evenly and may arc and spark.

Without the cover in place, food particles and grease can get on the waveguide and magnetron, and cause arcing damage.

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

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.

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.

If you need to replace the stirrer motor, you'll probably have to pull the oven from the wall. You can download GE owner's manuals and installation instructions here.

If the cavity metal of the oven is chipped or charred, it will have to be sanded smooth and clean and dried thoroughly.

Then you can apply some high-temperature appliance paint, available from places like Wal-Mart, Lowe's or Builder's Square.

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

Dec 02, 2008 | Microwave Ovens

1 Answer

Noise problem


Do you mean the hood / vent fan? If so, it may be failing, or there may be an obstruction in it.

Yours may have a fan-like stirrer located above the cover in the ceiling of the microwave. Is that what you mean?

Is it heating and working properly otherwise?

Please reply back so we can help further.

Dec 04, 2007 | Frigidaire GLMB209D Microwave Oven

1 Answer

Jvm1440bd Microwave


I thought I had answered this, but maybe the reply didn't post... Vent cap? Could you be more specific about what you tried and what the noise is like - where it seems to be coming from? It looks like on some of these models, the high-voltage section emits some interference which some people are blocking with a foil or metal shield. If they do that, they should definitely insulate it to prevent shorts. Another cause of vibration on these models is a fault in the stirrer located above the cover on the ceiling inside the cooking cavity. Feel free to post back so we can help further.

Jan 08, 2007 | GE JVM1410 Microwave Oven

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