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Carrier 50TFQ004 Expansion Valve
A split-system AC unit could not emit cold air without a properly functioning valve. Pretty much every air conditioning system has an expansion valve that lets the coolant to expand back into gas form from a high pressure liquid state.
Major symptoms that your Carrier expansion valve is going to die
- Cooled air is well below the temp it ought to be blowing from the vents
- Your AC unit takes a really long time in its attempt cool as it should
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