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Lennox CB28UH-048 Expansion Valve
An air conditioner would not yield any cooled air if the valve was not doing its job. Almost all AC systems have an expansion valve that permits the refrigerant to expand back into its natural vapor form from a high-pressure liquid form.
What symptoms are present when the main expansion valve has a need to be replaced?
- The outdoor AC unit takes its sweet time in attempting to keep the home at a comfortably cold temperature
- AC air production is warmer than the usual air exiting the vents
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