What does freon in ac unit smell like?
There is no smell, unless somebody has used something like 22a freon which is actually propane and may have a sulphur smell
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Freon is odorless because it is a combination of gas and oil.However, many believe it can be detected by a sweet smellingfragrant in the air.
Your a/c is recharged through the low side service port with with the blue cap.
The proper term is actually refrigerant - Freon is a specific brand name trademarked by DuPont for a series of CFC and HFC refrigerants - thus, an AC system only has Freon if …it has the product manufactured by DuPont. Answering your question, yes, an outside AC unit uses refrigerant, although it's normally not the same type used in automotive AC systems. (MORE)