Car Air Conditioning: Troubleshooting Weak Airflow

The cooling ability of your car's air conditioner usually depends on the amount of air that it can both pull into and out of the system. If there is anything interfering with its ability to either suck in or push out air, it will fall short as far as making your car comfortable is concerned. In addition to a noticeable drop in the performance of the air conditioner, this problem is also accompanied by weak airflow. Here are some of the most common causes of this problem.

Mildew and mold accumulation

During the cooling process, the temperature of the air in the evaporator core area is usually lowered to such a level that condensation occurs. Any moisture in the air therefore ends up collecting around the core. Unfortunately, the presence of this moisture eventually encourages the growth and development of both mold and mildew. With time, mold and mildew usually accumulate in the area to such an extent that they block the flow of air conditioned air. This then leads to weak airflow.

Simply getting rid of these growths will be enough to restore proper airflow within the system.

A loose blower hose

The blower unit is responsible for generating the force that not only pulls air into the air conditioning system but also pushes air conditioned air out of the system. Air usually enters this unit through a hose. If this hose is loose, some of the air getting pulled into the system will leak. And since the blower fan is designed to pull in a given amount of air per second, this loss of air will lead to marked reduction in the rate at which the air is eventually pushed out of the air conditioner.

If a loose blower hose, simply tightening the connectors is an easy way to get rid of the problem. However, if the looseness is due to a worn blower hose, replacing the hose with a new one is the only viable solution to this problem.

Worn Out seals

Your vehicle's air conditioning system has seals in order to ensure adequate airflow to and from the evaporator coil. This includes evaporator core case seals, blower house seals and core case seals. With time, these seals usually wear out and when they do, their ability to form air-tight connections usually diminishes. As a result, your vehicle's air conditioning system is bound to suffer from air losses that eventually diminish the rate at which the system dumps air conditioned air into your vehicle. This will also be accompanied by a significant increase in energy consumption since in order to make your car comfortable, your air conditioner will have to work harder and for a longer period.

This is a problem that is easily solved by replacing the faulty seals. For more information, contact a business such as Modern Auto Air.