Low operating pressures and low system amperage in a split system may indicate what problem?

Low operating pressures and low system amperage in a split system often indicate low airflow across the evaporator. When airflow is restricted, the evaporator coil does not receive adequate air to absorb heat. As a result, the refrigerant doesn't evaporate properly, leading to lower pressures in the system because the refrigerant is not able to take on sufficient heat energy to change from liquid to gas as it is supposed to. This situation can also cause the compressor to work less efficiently, resulting in lower amperage readings.

Improper airflow can stem from various issues such as a dirty air filter, blocked ducts, or malfunctioning blower motors. Addressing airflow problems is crucial for the overall efficiency and effectiveness of the cooling system. Finding and resolving airflow issues typically leads to better operating pressures and normal amperage readings, thus restoring the system to optimal performance.