There is no smell, unless somebody has used something like 22a freon which is actually propane and may have a sulphur smell
Freon is odorless, but it is possible to smell the refrigerant oil that could also be leaking.
yes
You can find a Freon leak in a home Ac unit by using a leak detector. These instruments are capable of detecting trace amounts of Freon and pinpoint leaks.
Freon is odorless because it is a combination of gas and oil. However, many believe it can be detected by a sweet smelling fragrant in the air.
16
How old is the tempstar.
Yes. It can be recycled and reused.
4 pounds
Well, if the unit was originally meant to be recharged with the old freon, a kit is needed to allow recharge with the new.
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.
It is possible low on freon.
R-22