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Vehicles are equipped with air conditioning systems in order to improve the comfort of their occupants while they use that vehicle. However, these air conditioning systems may develop defects such as having a weak airflow. Such defects make drivers and their passengers uncomfortable since the vehicle will not remain cool enough during hot days.
This article discusses some of the causes of this weak airflow. Use this information to have your air conditioning system inspected and serviced so that the specific cause of the weak airflow is addressed:
Mold or Mildew
During the cooling process, some residual moisture from the air remains within the air conditioning system of your car. Over time, mold or mildew can grow inside the evaporator core within the AC. That mold or mildew will prevent air from getting to the vents and you will begin to experience weak airflow from your auto AC unit.
A Loose Hose
Another cause of weak airflow is a loose hose. The most affected hose is the blower hose that supplies air to the AC blower unit. This hose is very susceptible to becoming loose because air flows through it at very high pressure when you are driving so it gradually loosens. Once this hose becomes loose, very little air will get into the blower unit and the result is that there will be a weak airflow from the AC of your vehicle.
A Defective Fan
When the air conditioning fan blows, the flow of air will be governed by the strength of the force generated by the moving car. If the car is moving slowly, the airflow will be slow and weak. This is because the fan is not working to force the air through the entire AC system.
Open or Broken Seals
Auto AC systems have several seals within them. They include the AC core case seal, the blower unit seal and the evaporator unit seal. Once any of these seals is open or broken, the operation of the AC system will be affected by the exposure to external elements like high temperatures. The airflow is likely to become weak since the AC is not working as it was designed to.
It is important that you take your vehicle to an auto AC technician so that the exact cause of the weak airflow is identified and corrected. Any DIY attempts are likely to worsen the situation so resist the temptation to fix the problem yourself. Contact a company like A-Lect Auto Electrics & Air Conditioning if you have any other questions.
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