I'm a new member to this site and trying to learn how to use it. I was a Packaging Systems Designer & Engineer for 27 yrs (and a field service tech the first 4 yrs), however, I had a TBI (Traumatic Brain Injury) 4 yrs ago and I still have trouble at times trying to interpret and/or follow directions, (sorry). My Issue is: I'm trying to install a new Front Blend Door Actuator. Was only getting air flow from the Bottom only. However, I don't know the home position and/or what position the Vent Door should be in when installing New Actuator. The New Actuator has the 3 markings i.e. looking at it like a clock with the middle mark being 12:00 and Left Mark 11:00 and Right Mark being 1:00. It came in with the slot on the shaft at approx 2:00. I would think that the markings are relative to Vent Door position. My question is this; if the Actuator is at the 2:00 position, when I install it, what position should the Vent Door be in? Dash Air? Floor Air? Any and all help would be Greatly Appreciated...