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Lennox XP14-048 Expansion Valve
Air conditioning units can not supply your house with cold air if the valve was not doing its job. Almost all AC systems have an expansion valve that allows the refrigerant to spread back into vapor form from a high-pressure liquid form.
What signals that my main expansion valve is on its last leg?
- The cooled air is well below the temp it should be blowing from the vents
- The cooling system takes a long time to cool
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