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Nordyne M1BB086 Expansion Valve
A normal AC expansion valve allows the coolant to expand back to its low-pressure gas form from a high-pressure liquid form. Your main AC unit would probably blow heated air if the expansion valve was worn out.
Main clues your refrigerant expansion valve is on its last leg
- AC unit takes a long time trying to cool the indoors
- The cooled air is much warmer than you are accustomed to for the AC to cool the house
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