What is a common symptom of a fault with the blower in an A/C system when other components are functioning?

A common symptom of a fault with the blower in an A/C system, especially when other components are functioning as intended, is inefficient cooling. The blower is responsible for circulating air across the evaporator coil, where the cooling process occurs. If the blower is malfunctioning or has insufficient airflow due to a problem like a dirty filter, blocked ductwork, or a failing motor, the system may not effectively cool the air. As a result, you may notice that even though the compressor is running and other parts of the system seem to be operational, the indoor temperature does not drop to the desired level, leading to inefficient cooling.

In contrast, symptoms like high pressure buildup or short cycling might suggest issues related to refrigerant flow or thermostat misbehavior, rather than a specific problem with the blower itself. Unusual noises, while potentially a sign of a blower issue, can also indicate problems in other components of the system. Therefore, inefficient cooling serves as a direct indicator of a blower issue when other components are functioning properly.