Age of Goodman AC

Can’t find info on Goodmans site Or Bldg Intelligence Center

GSC130601CB / 110400923C (C on s/n may be an O … can’t tell)

GSC130361GB / 1305754230

House is 12 years old & furnaces are Lennox and original … AC’s looks newer

Hey, Dan.

I believe the first one is April 2011, and the second is May 2013. And, yes, your C is the number zero.

2011, 2013 Goodman is year / month

Correct