Posts Tagged: check the refrigerant charge

Test AC system charge on an expansion valve system

Test AC system charge on expansion valve system with gauges How to check the refrigerant charge on a car expansion valve AC system using pressure and temperature You can’t determine AC system charge on an expansion valve system by measuring the evaporator inlet and outlet temperatures. By their very nature, expansion valves try to maintain the appropriate level of refrigerant even when the system is low. So measuring the inlet and outlet temperatures don’t work. How to determine charge on an expansion valve system First, conduct a maximum heat load … Read More