How to reset HVAC on dual climate system?

[phxramguy]

Hey all, i installed a new blend door and sometimes when my truck starts it is only blowing AC out of the floor vents. Sometimes it works great. Can someone tell me how to reset my HVAC system with this configuration? Thank you

 

[04fxdwgi]

Search youtube for videos on Ram blend door. They show how to re-calibrate it. I do not remember the procedure.

 

[GTyankee]

I can only say that a decent Radiator & Air Conditioning shop has a computerized machine that allows them to work the actuators on each of the 4 doors
So they likely they can reset everything, except the HVAC Control panel & possibly they can now do that.

I do know that usually in Chrysler's Rams...
there are 4 actuators for the 4 doors

Recirculation Door, controls FRESH AIR, it is above the Glove Compartments
Blend Door, controls Heat or Cooling, it is found to the left of the Lower Glove box, slightly above the fan.
Mode 1 & Mode 2 doors, are found behind the panel that holds the radio in place, at the lowest part of the dash board.( easy to locate on the GEN 4 Rams ), not easy on the GEN 3 Dodge Rams.
Mode Doors direct where the heat or cooling goes, feet, chest, dash

 

[1999 White C5 Coupe]

Hey all, i installed a new blend door and sometimes when my truck starts it is only blowing AC out of the floor vents. Sometimes it works great. Can someone tell me how to reset my HVAC system with this configuration? Thank you

View attachment 524408

If you disconnect, then reconnect the negative battery cable - then start the engine and turn-on the HVAC system, it will go through a self-calibration (which can take 1-2 minutes).

Please note that you would lose any stored trouble codes.

 

[skip1221]

click here to reset the doors skip to the 5 minute mark