Who is correct regarding the effects of air and moisture in the A/C system?

When considering the effects of air and moisture in an A/C system, both technicians can offer valid and complementary insights about how these elements influence system performance and efficiency.

Air in an A/C system can lead to reduced efficiency due to the lack of desired refrigerant flow and cooling capacity. Air pockets can cause the compressor to work harder, which may result in higher energy consumption and can also lead to system failures over time. In addition, air mixed with the refrigerant may cause fluctuating pressures and affect the overall cooling process.

Moisture, on the other hand, can introduce severe issues into an A/C system, such as system corrosion, mold growth, and the formation of ice within the components. Moisture can lead to acid formation, damaging the internal components of the unit. It can also freeze if the temperatures drop low enough, causing blockages and further impeding the system's performance.

By acknowledging the crucial role that both air and moisture play in the operation and longevity of an A/C system, both technicians emphasize the importance of maintaining system integrity through proper evacuation and moisture removal in service procedures. This collaborative understanding from both technicians reinforces the need to manage these elements effectively within the A/C system.