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Vent fan location - Whirlpool MH7155XM Microwave Oven

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How do I change my MMV4205BAS to vent (recirculate) out of the front vent instead of the top vent.


Paul, if you look on top of the microwave before you install it you will see where the fan is located at the back edge. There should be 2-4 screws that hold it in place. Remove the screws and pull the fan up and out of the microwave and rotate the unit 90 degrees towards the front of the microwave and put it back in and replace the screws. That should be all that you have to do to get it to vent out the front.

Jul 29, 2014 | Maytag MMV4205 Microwave Oven

1 Answer

GE Spacemaker XL1800 vent fan doesn't pull air from beneath


On the exhaust system (top of unit) there is a small metal 'damper' that is most likely stuck shut. If that is all clear then you have a problem in the duct work of the home.

Feb 23, 2014 | GE XL1800 1100 Watts Microwave Oven

1 Answer

We changed the charcoal filter & reset it. The vent fan still does not run. I cannot turn the vent on by pressing the vent button but the micro still heats up. What happened to the fan?


follow this steps and fix iT. God bless you


  1. Exhaust fan motorIf your exhaust fan motor is not running, there are a couple of things that you can check involving the motor to locate the problem. After removing the fan motor, you can manually attempt to turn the fan blades with your hand. If the fan motor is working properly, the blades should spin effortlessly. If this does not occur and the blades are taught, the motor will need to be replaced. Secondly, the fan motor itself can burn out due to time and usage. Using an ohm meter, the exhaust fan motor should read open for continuity. If it does not, then the fan motor has expired and will need to be replaced.
  2. ThermostatAnother part that could cause the microwave exhaust fan to not work is a faulty thermostat. A thermostat gauges the air temperature, which activates the exhaust fan when required. If this part becomes flawed, the exhaust fan will not energize and the thermostat will need to be replaced.
  3. Main control boardIf your exhaust fan is still not working and the microwave fan motor, wiring, and thermostat are operating accurately, the root cause could be with the main control board. Replace the main control board.

Read more: http://www.appliancepartspros.com/repair-help/microwave-repair-help.html#12#ixzz2gURd1VtM
http://www.appliancepartspros.com

Sep 30, 2013 | Whirlpool WMH2175XVB Microwave Oven

1 Answer

Vent fan does not turn on at all


If your cooktop lights recently blew, or if the relay that controls the vent fan is affected, you may need circuit board repair.

Otherwise, it may be a bad fan motor.

There should be a technical sheet hidden behind the grille or behinds the controls. It's very handy to locate and test components.

You can find a video here that shows you how to remove the grille & controller in about 5 minutes.

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

Apr 14, 2013 | GE Spacemaker JVM1540 Microwave Oven

1 Answer

Exhaust fan direction


You can usually recongure the outlet on the vent to just vent into the room,but if you aren't going to use it,not an issue.

Dec 18, 2012 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Converting the vent fan on a GE Combination Oven


is your house vent connected properly? no restrictions?

Aug 02, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

2 Answers

No vent for over the range microwave.


Have you selected a microwave yet?

many over the range types can be vented inside if a charcoal filter is used, which you must replace about every six months.

Otherwise, you will need to install a vent system in the kirtchen.

Aug 20, 2009 | Microwave Ovens

1 Answer

Stainless steel GE XL 1800 spacemaker works ok except the vent fan doesn"t come on when cooking, which gets to hot and shuts off. The fans work when you push the vent fan buttons and the vent covers...


So the fan motor's 21VAC winding is working. That's good.

But either the fan blade is loose on the shaft (a super glue fix) or the fan motor itself had failed.

You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

The fan motor is shown on the diagram there as reference # 78, part # AP3192806, located behind the control panel and adjacent to the magnetron.

I'm not sure you have to pull the oven from the wall to replace it, but if you do, the oven installation (& removal) instructions are included on the tech sheet inside the unit.

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

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

If you don't find yours I can send you a copy, or if you need more help, feel free to contact me directly (and please remind me of your full model number from the tag on the unit).

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

William E. "Ed" Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

Jul 20, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Vent fan will not stop running - Auto fan will not shut off even when there is no heat on and everything is cool.


the thermal switch button is bad ,stuck on
its normally located in the back around the fan or klystron tube
it has 2 connectors and looks like a large button.

Apr 25, 2008 | Microwave Ovens

1 Answer

Mircowave works, exhaust door opens, fan stop working


From looking at the owner's manual, it looks like the vent fan is only supposed to come on when the internal temperature of the microwave gets too high OR when you press the VENT FAN pad. Here are a couple of fan-related excerpts from the owner's manual, which can be found here: http://products.geappliances.com/ProdContent/Dispatcher?REQUEST=SKUOBJECTS&DOCUMENT=Use%20and%20Care%20Manual&SKU=JVM1840BD (or the better URL here: http://tinyurl.com/yn7r6g) Automatic Fan An automatic fan feature protects the microwave from too much heat rising from the cooktop below it. It automatically turns on if it senses too much heat. If you have turned the fan on, you may find that you cannot turn it off. The fan will automatically turn off when the internal parts are cool. It may stay on for 30 minutes or more after the cooktop and microwave controls are turned off. - Vent Fan The vent fan removes steam and other vapors from surface cooking. Press VENT FAN once for high fan speed, twice for medium fan speed, a third time for low faw speed, or a fourth time to turn the fan off. Press the VENT FAN BOOST pad for extra fan speed. - Hope this helps.

Oct 31, 2006 | GE JVM1840 Microwave Oven

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