Technician A says air in the system can cause excessive pressure within the A/C system. Technician B says moisture can cause freeze-up at the expansion valve. Who is correct?

Question

Quizplus · Accepted Answer

Both technicians are correct. Air in the A/C system can indeed cause excessive pressure, leading to potential damage or inefficient cooling. Moisture in the system can freeze at the expansion valve, blocking the flow of refrigerant and impairing the system's performance.

Technician a Says Air in the System Can Cause Excessive