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Carrier 38BK Expansion Valve
Almost all AC systems have an expansion valve that allows the coolant to expand back into its natural gas state from a high-pressure liquid form. A split-system AC unit could not run if the expansion valve was either damaged or just not working properly.
Subtle cues of a dying Carrier expansion valve
- Your AC takes a really long time in its effort to keep the temperature down
- The air is well below the temp it ought to be comes through the ducts
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