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Is it better to have the"vent" opened or closed?

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  • mirrortime Jul 02, 2008

    Thanks very much 22yooper. I have been wondering about this for 2 years! You're awesome...




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Vent closed should save some of your cold air. Vent is made for places where there is little normal air change in a space. Unless you have smokers present vending should be unnecessary.

Posted on Jun 30, 2008

  • James Helmer
    James Helmer Jul 02, 2008

    Thank You for the flowers



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1 Answer

How do I know if the vent is open or closed?

if it's the air vent you'll notice a different sound as well air pressure from inside to outside air. if it's the drain vent you'll see water flowing outside the unit. this is the condensation that forms

Jul 04, 2012 | Goldstar R8000 Air Conditioner

1 Answer

My sun roof just opens up wards to vent after installing a alarm my sun roof slid all the open two times & now it only opens to vent

For sunroof related problem,if your exact car model is provided,then it will be better.But in this case,i suggest you to check the link below:----How to Remove Power Sunroof on Acura Integra?
------------How to manually close Sunroof on 2000 Lincoln Navigator?
-----------No power to Courtesy Lights and sunroof?
-----------This will help.Thanks.

Feb 07, 2012 | Cars & Trucks

1 Answer

PO446 OBD code on 2005 4.8 liter Chevy Silverado

  • Evaporative Control Vent valve has only one purpose. It closes in order to seal the vent so the EVAP system can pressurize and ensure there are no leaks. Evap vent valve is usually supplied Batt. voltage with key on. The ECM's driver controls the ground, and when grounded, activates the valve (closing it). If the ECM detects a short to ground, and open,or a short to battery voltage on the control circuit, P0446 will set. Code also may refer to ECM detecting that EVAP system is unable to achieve or maintain

    vacuum during test.

    Possible causes

    • Faulty vent valve
    • Open, short or excessive resistance on Vent valve control circuit
    • Blockage of vent valve
    • Bad PCM
    Possible solutions:
    Replace Vent valve
  • Repair open, short, or resistance problem in control circuit
  • Repair open, or short, or resistance problem in power circuit
  • Replace PCM I hope this atleast narrowed it for you.

Dec 27, 2011 | 2005 Chevrolet Silverado 1500 2WD

1 Answer

I have a maytag Mdg5500. When I turn the dryer on the ignitor glows gas valve opens and I get flame for about 20 seconds and then it shuts down. It will then retry after about 1-2 minutes. Also the...


While i understand that you cleaned the lint build up from the dryer,the problem your experiencing sounds like a airflow issue that is causing the flame to starve for air and the flame is blowing out. In addation to possible lint build up the things that will cause poor airflow are;

The blower wheel being you fell any air flowing out the back of the dryer?

A blocked/crushed vent..if air flow from back of dryer is their airflow close to equal volume of air flow where the vent goes outdoors?

You can disconnect the vent from the rear of the dryer temporarly and see if it works better with the vent off to check it

Good luck,i hope i have been able to help you fix your dryer,

Sep 04, 2011 | Maytag Neptune MDG5500AW Gas Dryer

1 Answer

Need to know if the vent should be open or closed or fresh air setting while running ?

personal choice, open allows unit to exahust stale air, closed gives better efficiancy (minimal)

Jul 22, 2011 | Frigidaire FAC127S1A Air Conditioner

1 Answer

Why would no air blow out of the dash vents but blow out of the defrost vents. The air conditioning when turned on does the same thing.

There's (flap or doors) that open and close depending where you are the air to come from. The door opening for the vents is most likely broke and staying closed or it is not getting vacuum to the door to open it. They charge $250+ to get into the air unit find problem and fix it. It it a very aggravating job for a person new to this. Take a swing by a air cond specialist to see if they can give you a better answer with the price and problem.

Aug 28, 2010 | 1996 Chevrolet Blazer

1 Answer

The Air comes out through the top defrost and bottom(floor) vents but very faint from the panal vent even on high

I'm not very familiar with those vehicles. However, generally speaking that era of automobiles used vacuum to "power" actuators inside the hvac system to open and close doors to redirect air to various openings in the dash. With no vacuum the default setting is usually the defroster and floor vents. Look for a broken or disconnected vacuum line in the engine compartment. It will originate from the firefall on the passenger side and likely go to a port on the intake manifold.

May 09, 2009 | 1990 Nissan 300ZX

2 Answers


F1, F2, and F3 are the strength of the fan blowing the air conditioner. F1 circulates the least amount of air, F3 the most. I generally find that if the air conditioner isn't getting the job done on F1, F2 will do it. I typically only use F3 if I just want to circulate air fast in my place for awhile. As far as what is "better" with closed vent or open, that depends on what you want to do. If you are using air conditioning on a hot day, then vent closed is better because it will cool only air circulating in your place. Vent open will allow fresh air in from outside, and if it's a really hot day, the air conditioner might have a harder time cooling off the fresh air than the circulating air inside your place (as it's continually being cooled repeatedly by your air conditioner).

Jun 10, 2008 | Goldstar M1003R Air Conditioner

1 Answer


F1 - F3 are the fan speeds when the air conditioner is in fan only mode.

The vent can be opened or closed based on your preference. When the air conditioner is in a/c or dehumidifier mode having the vent closed will cause the a/c unit to recirculate the room air and cool / dehumidify quicker. When you open the vent the a/c unit takes air from outside and cools / dehumidifies it. It is obviously not as efficient this way but it does bring in fresh air.

Jun 10, 2008 | Goldstar M1003R Air Conditioner

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