What indicates a problem with airflow in the condenser unit?

The correct choice indicates that increased compressor load is often a sign of inadequate airflow in the condenser unit. When airflow is restricted, typically due to blockages, dirty coils, or issues with the fan, the condenser struggles to dissipate heat effectively. As a result, the compressor must work harder to maintain the required refrigerant flow and pressure, which leads to an increased load on the compressor.

If the outdoor unit cannot expel heat adequately, the compressor may face elevated pressures and temperatures, which not only affects performance but can also lead to overheating and potential failure if not addressed. Recognizing the signs of increased compressor load is crucial for diagnosing airflow problems early, enabling timely interventions to restore system efficiency and longevity.

In contrast, while decreased indoor temperatures might suggest effective cooling, they do not directly point to airflow problems in the condenser unit. Increased outdoor temperature is typically expected in summer and doesn't directly indicate issues with airflow. Reduced refrigerant pressure can be a symptom of other problems, such as leaks or insufficient refrigerant charge, rather than a direct indicator of airflow issues.