Posts Tagged: expansion valve auto AC

How an Expansion Valve Works in Auto AC Systems

Learn how an expansion valve works in your car’s AC and also how it fails The expansion valve is a critical component in auto AC systems. It regulates the flow of refrigerant into the evaporator and reduces the pressure of the refrigerant liquid. That allows the refrigerant to cool and partially evaporate before entering the evaporator. This pressure reduction is essential for the refrigerant to absorb heat effectively inside the evaporator. A faulty expansion valve can stop the flow of refrigerant or get stuck fully open. Both of those conditions … Read More