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Carrier 48GS030060300 Expansion Valve
A split-system AC unit could not cool the air if the expansion valve was somehow damaged. A normal AC expansion valve allows the refrigerant to expand into its normal low-pressure gas form from a high-pressure liquid form.
General warnings of a defective refrigerant expansion valve
- Cooled air is much warmer than it used to be blowing from the vents
- Your cooling system takes a long time to actually keep the home at a comfortably cold temperature
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