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Lennox G40UH-36C-110 Expansion Valve
A normal AC expansion valve permits the refrigerant to expand into its normal low-pressure vapor form from a liquid. Your home air conditioner could not cool the air if it was deprived of a functioning expansion valve.
Clues to watch for to know your main expansion valve will eventually need to be replaced
- Air flow is not cold enough as it should be exiting the vents
- The cooling system takes a long time trying to cool the house down
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