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Carrier FB4CNF030 Expansion Valve
Every air conditioning system contains an expansion valve that allows the refrigerant to expand into its regular gas form from a high pressure liquid state. An AC would most likely give you heated air without a properly functioning valve.
Symptoms the expansion valve needs to be replaced
- The air conditioned flow is well below the temp it should be exiting the air handler
- The cooling system takes a really long time to actually cool as it should
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If you are going to be buying or ordering any Carrier FB4CNF030 part, do your due diligence and cross-check the model number as well as make a visual inspection in order to be sure the right expansion valve is being ordered. If you are unsure about installing the expansion valve on your own then it would be in your best interest to find a professional in your area to do the replacement of the part.
Feel free to download your manual for help.
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