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Payne PY1PNB024040AAAA Expansion Valve
A normal AC expansion valve allows the coolant to expand back into its natural vapor form from its highly pressured liquid form. Your AC would be worthless if the valve was missing.
Main clues your refrigerant expansion valve will eventually need to be replaced
- The outdoor AC unit takes a really long time to actually cool the home
- The cold airflow is warmer than you are accustomed to blowing from the vents
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