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Lennox XC16-024 Expansion Valve
Almost all AC systems have an expansion valve that makes it easier for the refrigerant to expand into its normal low-pressure gas form from a high-pressure liquid form. An air conditioner would be worthless if the expansion valve was either damaged or just not working properly.
Key signs of a deteriorating expansion valve
- The cold airflow is warmer than it ought to be for the AC to cool the house
- Your AC takes a long time trying to keep the home at a comfortably cold temperature
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