What is one potential consequence of a dirty air filter?

A dirty air filter can significantly impede the airflow within an HVAC system. When the filter becomes clogged with dirt, dust, and other debris, it restricts the amount of air that can circulate through the system. This diminished airflow can lead to a variety of problems, including reduced cooling efficiency. The system must work harder to maintain the desired temperature, which can lead to increased energy consumption and potentially higher utility bills.

Additionally, the reduced airflow can cause the evaporator coils to freeze due to insufficient warm air passing over them. This results in inadequate cooling and can also create further operational issues if not addressed. By ensuring that air filters are regularly cleaned or replaced, airflow remains unobstructed, promoting efficient operation and comfort within the living space.