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Mitsubishi MUZ-FD09NA Expansion Valve
The AC in an HVAC system would most likely give you heated air if the valve was not functioning. Pretty much every air conditioning system has an expansion valve that lets the coolant to expand back into its natural gas form from a high pressure liquid state.
What are some indications that my AC expansion valve is about to go out?
- Cooled air is definitely not as cold as it really should be coming from the AC
- AC unit takes too long to comfortably keep the temperature down
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