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HOME > HVAC > LENNOX > 42W43 > EXPANSION VALVE

Lennox 42W43 Expansion Valve

Air conditioning systems would not generate and cold air if the expansion valve was broken. Almost all AC systems have an expansion valve that allows the coolant to expand into its regular gas form from its highly pressured liquid form.

Major indications to watch for in a bad AC expansion valve

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Check eBay to see if your expansion valve is in stock!
Before you decide on buying or ordering any Lennox 42W43 part 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 being ordered. Replacing the expansion valve is a piece of cake assuming you possess the knowledge and have the proper tools to get it done.
Feel free to download your manual for help.
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Check eBay for your expansion valve!