Rust inside BWS

[Ackman]

My extended party is not very old, think I got it in Aug. It is kept in the garage unless I am actually cooking and I am now starting to see rust forming inside. I did season it and I at least think I take care of it after a cook, taking the water pan out, and leaving the door cracked till the fire burns out which I would have thought would dry it out. So...sort of two questions:
1) how do I treat the existing rust
2) what do I do in the future to prevent it from happening again

Thanks in advance

[zacman]

Spray with Pam to prevent rust

[DownHomeQue]

Wire brush the rust.. and ReSeason!.. lil rust is no big deal.. may just be from humidity in the air