Fan Switch
WARNING: This page is about a different car, the 1996 Saab 900 and 1995 Saab 900. However, it is still accessible from the selected car via links, so may be relevant.
Fan switch is off when air distribution control is in "O" position. With air distribution control in maximum vent position, blower automatically runs in third speed. In other air distribution positions, rotary fan switch has 4 positions. See Figure.