Car AC Not Blowing Air From Vents

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Car AC Not Blowing Air From Vents

Car AC Not Blowing Air From Vents

Car ac not blowing air from vents means a problem with the air passage.

In normal car air conditioning if the fan is set to maximum the amount of air coming out the ac vents should be also maximum, but if the car air conditioning vent barely blows out air it is not normal. Usually, the main reason is a blower problem or air duct blockage problem that restricts the amount of air coming out of the vents.

AC Blower and Evaporator

When a mechanic troubleshoots the problem, the first culprit that will come into the mechanic mind is the blower has a problem because most often than not, the cause of the problem is a failing blower. But sometimes the sliding blower wheel from the blower motor shaft is also the reason, there is another reason like the blower is having a faulty dashboard switch assembly, in this case, the blower will not operate on the maximum operation even if it was set on the highest setting.

Same as for the air duct blockage this will restrict the flow of a sufficient amount of air from coming out of the car air conditioning vent, the possible reason for this is because there are a closed or nearly closed air doors that are stuck inside from one of the air conditioning ducts which prevents the sufficient amount of air from coming out the car ac vents, it is also possible that an accumulation of debris such as leaves from a fresh air intakes restricts airflow from going into air duct all the way to the air vents, but the restriction of air can only be felt when the car air conditioning is set to "fresh".

Car trouble symptoms
(1) Not enough amount of air is coming out the car ac vents even when the fan is at maximum setting or more worst than that is the car AC is not blowing air from the vents.

Possible cause why air barely coming out of vents in the car
(1) Problem on the ac blower.
(2) Air duct blockage.

Car Troubleshooting
To fix the problem, the first thing to do is to determine the setting of the ac system to where the problem is occurring, is it occurring in the fresh air setting or on the re-circulation switch setting.

If it occurs in a fresh setting
If the problem occurred only when the air circulation is set to "fresh", meaning the air from outside goes inside the vehicle then it obviously be a problem of accumulation of debris on the intake port for fresh air, check if there is leaves that accumulates on the intake port that restrict the flow of air from coming out vents, remove that debris to solve the problem, the intake port is located on the outside beneath the cowl top, this is near the windshield base, just open the car hood to gain full access on the intake port.

Car AC Not Blowing Air From Vents
AC Air Circulation Switch
If the problem occurs on either re-circulation or fresh setting

Sometimes it's just a case of blocked or dirty AC filter, check the AC filter for any debris and clean or replace if necessary.

However, if the AC filter is fine and cleaned and still the ac vents barely blow air even if the car ac is set to "recirculate" then it is a more serious problem. In this case, you need a mechanic to check the problem, bring the car to a reputable shop specializing in auto ac repair and have it check.

Air Barely Blows Out Even with Fan at Highest Setting
If air barely blows out even with fan at the highest setting, it indicates a problem with the blower or physical blockage of ducts. Learn more: Air Barely Blows Out Even with Fan at Highest Setting

Probably the mechanic will remove lots of parts before the car ac blower and air conditioning checked, this has to be done to give way on the checking of the AC duct. In checking these parts it needs some expertise of the mechanic so a car shop that specializes in AC repair is necessary.

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Related Topics:

Why Is My Car Air Conditioner Not Blowing Cold Air?
My Car A/C is Blowing Hot Air
Car Heater Not Blowing Hot Air


  1. HI, I have a 2005 kia spectra5, my a/c unit works, but sometimes when Im driving the airflow stops. If I put my hand up to the vent, I feel the cold air inside the duct but there is no airflow and the fan sounds like is working. Also sometimes I see a white cloud of fog, almost like when you open your freezer. I dont know what could be causing this, but I think is freezing the duct and restricting the airflow because when this happens, Ill put the temperature to hot, and it takes a few minutes before the hot air starts flowing causing the air to flow again. Any Ideas or suggestions?

  2. my car really sucks. you cant feel any air at all. even with the air filter removed and the hole exposed to outside air

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  4. Great article Lot's of information to Read...Great Man Keep Posting and update to People..Thanks Revs check


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