Causes of Reduced Air Flow in Your Air Conditioner

One of the most noticeable signs of something wrong with an air conditioner is when the airflow coming from the vents takes a significant drop. When this happens, it will lead to a slow and uneven distribution of cool air through a house, and hot spots will begin to appear. Soon, the only way someone inside can stay comfortable is to camp out beside the sluggish vents.

You should never let it get that bad, however: instead, call for professional air conditioning repair in St. Augustine, FL right away. The technicians at J & W Heating and Air have the training and experience to pinpoint the problem and fix it fast so you’ll have the full power of your AC restored to keep your home cool.

What Causes a Drop in Airflow?

There are a number of different sources for a reduction in airflow from the vents of an air conditioning system. Sometimes they combine to create the problem.

The most common trouble comes from the air filter, which keeps debris from coming through the return vents to contaminate the interior of the evaporator. After only a month of use, the air filter will become congested with dirt and dust to the point that it will choke off the airflow into and out of the unit. This will not only lower airflow from the vents, it will force the AC to overwork and can cause icing along the evaporator coil that will further lower its performance. When these problems start, you’ll need repair work. However, if you change the filter once a month during the summer, it will help keep these troubles from beginning.

Malfunctions with the blower often lead to airflow loss. The blower fan sits at the base of the indoor AC cabinet and sends the air across the evaporator coil and into the ventilation system. If the fan suffers from mechanical problems, or if its motor starts to fail, it will lower the airflow. Mechanical troubles always require experienced technicians to remedy them.

The problem could lay outside the cabinet in the ductwork itself. Duct leaks cause the air pressure inside the ventilation system to plunge, and this will affect the airflow. Duct breaks will lead to dust infiltration and moisture in the ducts that will lower indoor air quality along with lowering comfort. Duct sealing specialists will need to take care of this problem.

Contact the Experts

A drop in airflow is inconvenient, but it also warns of potentially larger problems at work… and you cannot delay calling for expert help to solve the issue. For fast and skilled air conditioning repair in St. Augustine, FL—available 24 hours a day—call J & W Heating and Air.

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Stacy Russell
Stacy Russell
15:10 02 Jun 20
I will be recommending J&W to my friends and family. They were very professional and on time. Did a very well job in... a quality manner. Dustin, Mark, and Robert. Worked very well together and was in and out with no cleanup for me to do. Thanks so much for getting my home back to a cool more
Phillip Wallace
Phillip Wallace
13:46 27 May 20
Just had an entirely new, full HVAC install done at our old house in Riverside, which was a fairly big job. Brian and... Will did the installation, and were awesome. There was going to be issues leveling the air handler in the attic, so they moved it to a new spot and hung it instead, getting new parts/changing the plan on the fly. We're much happier with this new setup and location of the air handler. I really appreciated this, their professionalism/thoroughness, and flexibility. Brian and Will worked super-hard, and double-checked everything once the job was done. Would use this company more
Louis Kincheloe
Louis Kincheloe
21:18 01 May 20
Two installers here early this morning. Worked all day. Very professional, extremely well mannered and quick to answer... all my questions. They are Dustin and Robert. Both men went above just installing my new unit, they were personable and knowledgeable in what they were doing. I was surprised when I found out these two hadn't been working that long together. They worked extremely well together. I highly recommend this two more
Shirley Davis-So Brooks
Shirley Davis-So Brooks
18:10 01 Jun 18
Very pleased with installation of York A/C Heating unit. Jason Bottoms and Jason Flatearth were professional, ... arrived on time and completed the job in a timely manner. The unit looks great. They upgraded and repaired everything that needed it. Great more
James Ponciano
James Ponciano
22:46 03 May 18
A snake crawled into my outdoor condenser and stopped my 16 year old Trane last week on Thursday. The power surge took... out my blower unit circuit board and the motor. I called J&W and Rob was over within two hours of my call. I was spec'd a new York 17 seer system and it was up and running on Monday. Technicians Jason and Brian arrived promptly and every facet of the installation was thorough. When completed, I would not of even known they were there except they left my garage cleaner! Thanks J&W!read more
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