HVAC - EPA Certification Practice Exam 2025 - Free EPA Certification Practice Questions and Study Guide

When an HVAC system is not cooling properly, checking the airflow and ductwork is a crucial step in diagnosing the issue. Proper airflow is essential for an HVAC system to function efficiently, as it ensures that cool air is adequately circulated throughout the space. If there are blockages, leaks, or other issues in the ductwork, it can significantly reduce the system's efficiency and cooling capacity.

Inspecting the airflow involves looking for any obstructions in the vents, verifying that registers are open and unobstructed, and ensuring that the ducts are not crushed or damaged. Additionally, checking the filter is part of this process, as a clogged filter can restrict airflow and lead to inadequate cooling.

In contrast, increasing the thermostat setting may lead to a lack of cooling without addressing the underlying issue, replacing the unit outright could be unnecessary and costly without proper diagnosis, and ignoring the problem wouldn't resolve it and may lead to further complications or increased costs in the long run.