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Carrier 38GRQB09 Expansion Valve
Your home AC system contains an expansion valve that allows the coolant to expand back to its low-pressure vaporous form from a liquid. Air conditioning units would probably blow heated air if the expansion valve was worn out.
Key clues poorly running refrigerant expansion valve
- The outdoor AC unit takes forever trying to keep the temperature down
- The cold airflow is much warmer than it ought to be comes through the ducts
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