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Lennox HP13-036 Expansion Valve
Every air conditioning system contains an expansion valve that allows the coolant to expand back to its low-pressure vaporous form from a high pressure liquid state. Your main AC unit would produce no cooled air if the valve was missing.
What happens when my Lennox expansion valve is crapping out?
- The air conditioner takes too long in attempting to cool the indoors
- The cool flow of air is warmer than it should be blowing through the ductwork
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