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Carrier 58MSA12012120 Expansion Valve
The AC for your home could not cool the air if the expansion valve was worn out. Your HVAC system expansion valve lets the coolant to expand into its normal low-pressure vapor form from its highly pressured liquid form.
Important hints your main expansion valve is failing
- Your AC takes too long in its bid to bring down the temp in the house
- The air conditioned air is well below the temp it should be for the AC to cool the house
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If you are going to be buying or ordering a replacement expansion valve for your Carrier 58MSA12012120, do your due diligence and cross-check the correct model as well as make a visual inspection in order to be sure the proper replacement expansion valve is being ordered. If you are unsure about the properly replacing the new expansion valve on your own then it is probably best to find a professional in your area to do the work for you.
Feel free to download your manual for help.
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