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The unit went dead and only the vent fan is going and the fan won't shut off unless unplug.

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  • William Miller
    William Miller May 11, 2010

    Is this a GE over the range type?

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




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It's a Quasar circa 1992.

Posted on Oct 20, 2008

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I have a Maytag Microwave/Hood MMV4203DS00. Twenty minutes after its last use as a microwave oven, the Vent Fan spontaneously went on and the Display Shows: VENT...FAN..--5E-- (or SE?). The microwave...


"SE" error means you have a shorted membrane keypad.
On this model, the membrane keypad is not available as a separate part, so the control panel frame assembly (which comes with a new keypad) would have to be ordered and replaced.

It's actually a pretty simple DIY repair.

The frame assembly is part number W10258190 and you can get it for $67.98 (subject to change) from the Pros here. You can also order the thermostat (part number WB27X10567 ) from them.

Their is a video here showing how to remove a typical over the range control panel assembly in under 5 minutes.

Then you unplug the keypad as per the photo below.

9_24_2013_12_08_39_am.jpg

Some connectors on the relays have a lock:

positivelock.jpg Then move your circuit board into the new frame. Be careful, the display is made of glass.

Sep 01, 2013 | Microwave Ovens

1 Answer

Vent blower won't stop


I had the same problem with the fan not wanting to shut off after the repair. Once I set the clock though I was able to push the button to shut the fan off. So try setting your clock first and see if that helps.

May 07, 2013 | GE Profile Spacemaker Over-the-Range...

2 Answers

My GE Microwave JVM1850 will not heat unless I put the vent fan on.


That's really odd. I don't believe I've heard of that one before.

I would suspect the problem is on your control board, which in most can be repaired simply and inexpensively.

A YouTube video showing how to remove a typical over the range control panel assembly in under 5 minutes, is here.

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

Nov 30, 2012 | GE JVM1850 1000 Watts Microwave Oven

1 Answer

Oven won't shut off


One of the door switches is defective, caused by a build up of food particles or normal ware, to correct this a professional will need to identify the problem and replace it.

Mar 07, 2012 | GE Advantium 120 Convection/Microwave Oven

1 Answer

Microwave won't work, I was cooking on the stove and the fan came on and then everything went out on the microwave suddenly


There is a thermostat which detects when the temperature from the cooktop is too high, and it makes the hood vent exhaust fan come on to cool it to protect the controller.

That's I always recommend that you use the vent fan whenever you're cooking on the stove top to keep heat, steam, and grease out of the controls and door panels.

Assuming the wall outlet is good, 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 dead, another thermostat may be blown,or the fuse.

You can find links to helpful exploded view diagrams and order parts here.

I'd recommend that your bookmark this link to your favorites.

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.

Usually the fuse and magnetron thermostat will be accessible for testing behind the controller.

If those are good, then it may be a bad oven cavity thermostat, and checking that will require you to remove the oven from the wall and take off the outer cover.

Behind the controls in many microwaves is a technical sheet, which helps in locating and testing components.

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

Nov 02, 2011 | Magic Chef MCO160UQ Microwave Oven

1 Answer

Arcing and then went dead. Can see arcing from top vent behind fan blade


owwwww! i say,,,owwwww! again.....
its time you dumped this unit,,,to fix it will cost barn nearly as much as a new one

Jul 01, 2010 | Panasonic NN-P295SF Microwave Oven

1 Answer

I have a GE Microwave Model JVM1540LM2CS. It started making funny noises like a fan or gear grinding and then it quit working altogether. I have checked the circuit breakers in the house and have...


sounds like the mag fan went out and blew the internal fuse they are ceramic fuses 15 or 20 amp available at hardware stores ,if this blows again it could be the mag overheated,but the thermal breaker should have shut it off before this,thenit can also be your h.v. diode or capacitor shorted

Oct 10, 2009 | Microwave Ovens

1 Answer

Works up to about 5 min. then waits about 20 min. to cook again. HELP


When you say shuts off, do you mean it goes dead as if someone unplugged it, or does it stop as if someone hit the Stop pad?

If it is going dead, it sounds like the magnetron is overheating and opening the thermostat.

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.

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 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 28, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Ge spacemaker xl microwavejvm1840


It sounds like two separate problems.

1. It sounds like your magnetron is overheating and then the thermostat trips, cutting the power until it turns off, then it closes to power it back up.

It's essential that the internal cooling fan (I don't mean the hood / vent / exhaust fan) is running to be sure the magnetron stays cool.

2. It also sounds like your vent / hood / exhaust thermostat is sticking or the triac on the circuit board is leaky, causing the vent fan to stay on.

But you may want to check the owner's manual. It is designed to stay on if the temperature of the stove top is above a certain level.

-.htmYou 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.

-.htmPlease reply back here if you still need help.

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

Jul 10, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

GE spacemaker Profile XL1800 vent fan will not shut off


It may be a bad door switch, a loose door switch mount, or a problem on the control panel, such as a sticky relay.

I would suspect a sticky relay first, but the door switches should be checked.

If you or a friend decide to look into it, we have critical information on safety, disassembly and door switches at our site, linked here on Fixya: http://tinyurl.com/yzjozk

If you need your control panel assembly (smart board) repaired, we do that for $39.95 nationwide.

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

Dec 02, 2007 | GE Spacemaker JVM1640SJ Microwave Oven

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