Heating, Ventilation, and Air Conditioning (HVAC) Electrical Test 2025 – 400 Free Practice Questions to Pass the Exam

A clogged air filter significantly impacts HVAC performance by restricting airflow, which can lead to overheating. When air cannot flow freely through the system, the components, particularly the blower motors and heat exchangers, are forced to work harder to circulate the air. This added strain can elevate temperatures within the system, potentially leading to overheating. Over time, this may result in system damage or failure due to overheating components.

Additionally, reduced airflow means that the HVAC system cannot effectively heat or cool the space as intended, leading to discomfort in indoor environments. The combination of these factors emphasizes the importance of regularly servicing and replacing air filters to maintain optimal HVAC performance and efficiency.