What should a technician check if they suspect low refrigerant pressure?

When a technician suspects low refrigerant pressure, checking for potential leaks is essential. Low refrigerant levels can lead to several issues, including decreased cooling efficiency and system damage. A leak indicates that the refrigerant is escaping the system, which directly lowers the pressure. Detecting and repairing leaks not only helps restore proper refrigerant levels but also ensures the system operates efficiently and effectively.

While factors like airflow quality, thermostat calibration, and electrical connections can affect HVAC performance, they do not directly resolve issues caused by low refrigerant pressure. Therefore, identifying and addressing leaks is the most critical step when suspecting low refrigerant levels. This straightforward approach allows technicians to maintain system reliability and performance.