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Goodman GSX130484 Expansion Valve
Your AC unit would produce no cooled air if the valve was missing. A normal AC expansion valve makes it easier for the refrigerant to expand back into its natural gaseous form from a liquid.
Red flags your main expansion valve is not going to last much longer
- Air flow is much warmer than it used to be for the AC to cool the house
- AC unit takes too long to appropriately cool the indoors
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