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Carrier 38SYG036 Expansion Valve
Almost all AC systems have an expansion valve that permits the refrigerant to expand into its normal low-pressure vapor form from a liquid. An AC could not emit cold air if the expansion valve was worn out.
Some clues of a bad expansion valve
- AC takes forever in its attempt keep the temperature down
- The air is well below the temp it used to be coming from the vents
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