Troubleshooting HVAC Airflow Issues

Many things can go wrong with your HVAC system. That is why troubleshooting HVAC issues is important. It is important for you to learn about the different types of HVAC issues and what you can do to fix them. Of course, you should always leave the work to a professional if you are ever unsure of something.

Common HVAC Issues

Airflow problems are typical with HVAC systems if you have clogged filters. Clogged filters disrupt proper airflow. Pollen, dust, dander, mold, pathogens, and pollutants are just some of the many particles that can clog your air filter. But there are also many other causes of airflow problems, such as:

  • Low refrigerant levels
  • Leaking or blocked ducts

Troubleshooting Common HVAC Issues

If you are experiencing issues with your HVAC system, here are some HVAC troubleshooting tips you can try.


If you are having issues with your HVAC system and the refrigerant is to blame, you should contact a professional. A technician will be able to refill your refrigerant if it is too low. This is not something you should attempt to do on your own since the refrigerant levels need to be the exact same as your AC’s manufacturer.

Air Filters

If you have issues with improper airflow, it could be due to filthy air filters. This may indicate that you should change your filters right away. Filters should be replaced at least every several months and cleaned after they have been used for 250 hours. Operating your HVAC system with a dirty air filter can really impact the quality of air that is pushed throughout your home. It can also cause your system to work harder and take more work to cool your home, resulting in a spike in your energy bills. When a technician comes out to check your system, they will make the necessary changes on top of changing your air filters.


Sometimes issues with the airflow are a direct result of your ductwork. Have a technician come out to check the duct system. Sometimes it can be a blockage or a leak. If your technician notices a leak in your ductwork, he will patch it up using duct sealant. As the sealant dries, it will begin to harden.

For ductwork blockages, your technician will check every vent in your home to check the airflow and go from there. The blockage will then be removed from your duct system.



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