BA Falcon Max A/C - Recirculate/Vent Link
It's the smallest things that can irritate you isn't it!
Fellow BA owners, ever noticed how when you rotate your aircon to max at hard left, and then rotate it back one notch, your system goes from 'recirculation' to 'Vent'!
Man, we were getting really annoyed trying to figure out why sometimes the system would stay on recirculate, and others it would reset itself to vent - you only notice it's gone back to Vent when you start following an old Sigma Smoke Blower or some such beast, and by the time you smell it, it's too late
Very annoying indeed until you realise what it's doing.