What CONTROLs A/C-Htr air direction between Defrost/Floor/Cab, elect valves??? on 2003 Dodge Ram 1500

A/C-Htr air vents ONLY blow straight into cab regardless of control switch setting; will NOT blow UP (Defrost) nor DWN (Floor) directions at all!

Asked by for the 2003 Dodge Ram 1500
1 answer 4 comments
THEY ARE BLEND DOORS THAT CONTROL THIS. HAVE IT DIAG DUE TO THERE ARE 3 AND A FRESH AIR DOOR.
THX; IF 'blend drs' are elect control VALVES, can a FUSE be the possible problem???
not normally its the actuator most of the time
BIG THX, globalhelper, good to know info! Bottomline - I reckon they will have to rip out the dash to get to the root of the problem.
not always 3 are acessed easy and the other is like a 5 hour job. u just have to know which one it is, hope this helps