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International Comfort Products PGMD60G1504 Expansion Valve
Your home AC system contains an expansion valve that allows the coolant to spread back into vapor state from a high pressure liquid state. A split-system AC unit would not produce cooled air if the expansion valve was either damaged or just not working properly.
Some clues of a bad main expansion valve
- The cooling system takes its sweet time trying to cool
- The air is not cold enough as it used to be coming into the house
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