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Carrier 38BYG042 Expansion Valve
An AC would produce no cooled air if the valve was not functioning. A normal AC expansion valve allows the coolant to expand back to its low-pressure gaseous form from a high-pressure liquid form.
What are some indications that my AC expansion valve is almost dead?
- Cold air is well below the temp you are accustomed to comes through the ducts
- Your AC unit takes too long to appropriately keep the house cool
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