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Lennox G40UH Expansion Valve
An AC system can not deliver properly cooled air if the expansion valve was totally worn out. An expansion valve allows the coolant to expand into its normal low-pressure gas form from a liquid.
Main clues your main expansion valve is dying
- Your AC takes a long time in its attempt keep the temperature down
- The air conditioned flow is not as cold as it really should be blowing from the vents
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If you decide on picking up or ordering a replacement expansion valve for your Lennox G40UH, do your due diligence and make sure of the correct model and also make a visual inspection so that you are positive that the correct expansion valve is the one being purchased. Use caution when you replace or install any part of a heating or cooling system. If you are in doubt about anything call a pro. Don't be sorry. Be safe.
Feel free to download your manual for help.
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