A basic refrigeration cycle consists of four major elements: a compressor, a condenser, a metering device and an evaporator. As a refrigerant passes through a circuit containing these four elements, air conditioning occurs. How does an expansion valve work? What is the function of an expansion valve?
What are the symptoms of a bad expansion valve? The adjusted tension of this spring is the determining factor in the opening and closing of the expansion valve.
This allows the refrigerant to cool before entering the evaporator. It also meters the amount of refrigerant transferred to the evaporator to avoid freezing. On some vehicles, these tasks are handled by the orifice tube instead of an expansion valve.
Get the job done with the right part, at the right price. AC system performing worse than usual and blowing warm air. Frost on AC evaporator or coming from the vents. AC compressor constantly running.
Electronic expansion valves are an evolution on the thermal expansion valve.
They are much more sophisticated and allow the refrigeration system to operate much more accurately and efficiently.


