What is one of the most common signs that an HVAC system needs maintenance?

Less airflow is a crucial indicator that an HVAC system requires maintenance. When the airflow diminishes, it can signal several underlying issues, such as a clogged air filter, blockages in ductwork, or problems with the blower motor. These factors can lead to inefficient operation, resulting in inadequate heating or cooling, increased energy consumption, and unnecessary strain on the system. Proper airflow is essential for proper heat exchange and maintaining overall system efficiency. Identifying and addressing reduced airflow early on can help prevent more severe problems and extend the lifespan of the HVAC system.