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HOME > HVAC > CARRIER > 42S > EXPANSION VALVE

Carrier 42S Expansion Valve

Every air conditioning system contains an expansion valve that makes it easier for the refrigerant to expand back to its low-pressure gas form from a high pressure liquid state. An air conditioner can not run if it were lacking a functioning expansion valve.

What happens when my refrigerant expansion valve is on its last leg?

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Check eBay to see if your expansion valve is in stock!
If you decide on picking up or purchasing do your best and double check the correct model as well as make a visual inspection in order to be sure the correct expansion valve is the one being purchased. The installing of a new expansion valve can be quite easy if you know what you are doing and have the tools to get it done.
Feel free to download your manual for help.
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Check eBay for your expansion valve!