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International Comfort Products PGMD18G0406 Expansion Valve
A split-system AC unit cannot possibly cool the house when lacking a functioning expansion valve. Every air conditioning system contains an expansion valve that allows the refrigerant to expand back to its low-pressure vapor state from its highly pressured liquid form.
Major symptoms the expansion valve is in dire straights
- The outdoor AC unit takes a long time to cool the house down
- The air is not as cold as it ought to be coming out of the vents
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