Is it stuck in the sense if you press it never de-activates? Did you check the manual? If yes, I do not know, but my reason for posting was to ask a similar question about the same thing.
Certain settings: AC, lower the temperature and the recycle kicks in, etc. Certain things just activates the recycle air button even if I do not want it to. Is there a way to set it so to NEVER turn it on, unless I specifically press the button?