What is likely to happen if the system air filter is not changed regularly?

Changing the system air filter regularly is critical for maintaining optimal performance of an HVAC system. When the air filter becomes clogged and is not replaced, it restricts the airflow through the system. This reduced airflow can lead to several issues, including decreased efficiency and an increased workload on the equipment. The HVAC system must work harder to push air through a blocked filter, which causes additional strain on components such as the blower motor. Over time, this can lead to premature wear and potential system failures, resulting in costly repairs or replacements.

Maintaining clean filters helps ensure proper airflow, supporting the overall efficiency and longevity of the HVAC system.