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Carrier 58STA07010012 Expansion Valve
An expansion valve allows the refrigerant to expand into its normal low-pressure vapor state from its highly pressured liquid form. Any home AC unit would be worthless if the expansion valve was either damaged or just not working properly.
Key symptoms of a failing expansion valve
- Your AC unit takes a really long time in its attempt cool the home
- The air conditioned air is not as cool as it should be being blown into the house
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