Causes of HVAC Airflow Problems

Airflow issues are among the most common HVAC problems. If you ignore the problem for too long, it can lead to more serious problems like compressor failure. Many causes of HVAC airflow problems are easy and inexpensive to fix. Here are some causes of HVAC airflow problems.

Clogged filters

The air conditioner filter removes dust and debris from the air and keeps it out of the ducts. If the filter gets clogged, it interferes with HVAC airflow, leading to stuffy air. Debris can also damage equipment.

Blocked or leaky ducts

A build-up of dust in the ductwork of a small capacity can easily clog them, especially if you live in an old building. The walls of the ductwork can also develop cracks where air leaks out. As a result, airflow for heating and air conditioning is reduced.

Dirty coils

Since it is part of the outdoor unit, the condenser coil can get dirty. A dirty condenser leads to overworking the HVAC system. The results can be HVAC airflow issues.

Low refrigerant levels

It is a common problem with older HVAC units or poorly maintained units. Airflow issues usually indicate there is a leaking problem.

A simple way to improve airflow:

  • Clean or replace the air filter

  • Clean fan blades

  • Clean coils

  • Inspect and adjust motors

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