Final answer:
Insufficient airflow in an A/C system is most commonly caused by both a dirty filter and a dirty coil, requiring regular maintenance to ensure proper operation.
Step-by-step explanation:
The most common cause of insufficient airflow in an A/C system is a combination of a dirty coil and a dirty filter. When the filter in your central heater or air conditioner becomes clogged with dust and other pollutants, it can significantly reduce airflow. The same is true for the evaporator and condenser coils which, when covered in grime or dirt, prevent the A/C system from effectively exchanging heat.
Changing filters regularly is essential for maintaining good airflow. The manufacturer guidelines usually provide a schedule for filter cleaning or replacement. Similarly, the coils should be inspected and cleaned regularly. It’s important to address both of these factors because a combination of dirty coil and dirty filter is typically the root cause of airflow problems, impacting efficiency and functionality of the system.