Low or impeded A/C airflow can cause problems ranging from a loss of cooling efficiency to more serious issues, like premature breakdowns. Understanding the reason for low airflow will help you prevent them and understand when it’s time to call a professional. Read on to learn what causes low AC airflow.
The Signs of Low Airflow in Your A/C
Low airflow causes your unit to work harder, raising utility costs and increasing wear and tear. Keep an eye out for the following signs:
- No Air—if no air comes out of your vents when the unit runs, airflow may be completely blocked.
- Uneven Cooling—one of the first signs of airflow problems occurs when you experience hot and cold pockets in the home.
- Warm Air Blows Out—if warm air blows out instead of cooled air, it’s time to call a pro.
What Causes Low AC Airflow?
Some of the reasons for low airflow have simple fixes, while others warrant professional HVAC services. Let’s take a look:
1. Airflow Around Your Condenser Unit
Your outdoor condenser unit releases warm air removed from your home to the outside. Nearby trees, bushes and shrubbery can encroach on your condenser unit, blocking airflow around it and preventing it from releasing warm air. Trim back surrounding flora to ensure a roughly 2-ft clearance around your condenser at all times.
2. Clogged Air Filters
Dirty HVAC air filters won’t allow air to pass through your unit efficiently. Air filters need to be replaced (or cleaned, if reusable) every 30-90 days, depending on your climate, lifestyle and the number of pets in the home.
3. Dirty Air Ducts
The air ducts in your home transport cooled air from your HVAC unit to your air vents. A build-up of dust, mold growth or insect and rodent infestations can clog up your air vents, blocking air flow. Have air ducts inspected and cleaned annually to prevent this issue.
4. Refrigerant Levels
Low refrigerant levels are a common cause for airflow issues and indicate a unit that was undercharged to begin with or may point to a refrigerant leak. In either case, you’ll want to call a professional HVAC technician right away.
5. Dirty Coils
Dirty condenser coils won’t be able to release warm air efficiently. Annual A/C tune-ups will help keep your coils clean and working.
You Can Always Call on Kinkaid
Kinkaid serves Montgomery, Bucks, Philadelphia and Chester Counties with residential and commercial installation, maintenance and repairs on all makes and models of HVAC equipment. Our expert technicians are fully trained, licensed and insured to take care of all your HVAC needs. Contact us today to get started!