AC issues with floor vent

[phxramguy]

Hello, I have a 2019 classic with a 5.7. I recently replaced my electric fan / blower motor / and blend door. I started the truck and it was only blowing AC out of my floor vents. I went to work and when I drove to lunch everything was fine. 2 days later I start my truck and it’s only blowing out the floor vents. I immediately turn the truck off and wait 10-20 seconds and turn the truck back on and it’s blowing fine. Any suggestions?

 

[jws123]

You probably need to re calibrate the blend door acuators since you replaced the blend door I did it with my scanner not sure if there is another way.

 

[GTyankee]

the MOPAR actuators are self calibrating, the actuators are small motors & gears

usually there are 4 fairly accessible actuators
the actuators are mechanically connected to the Blend Door & the Mode 1 & Mode 2 doors, the 4th actuator works the Recirculation door

If everything in the HVAC Box is good

The doors can sometimes work wonky, be glad that they aren't run by A.I.

Try this simple reset ..

when he takes the glove compartment out ...

Notice the duct tape
watch him work the white part, LISTEN to the sound as he moves it back & forth, Do you hear the THUMP ?

That means the door inside the box properly functions

4TH GEN DODGE RAM 2500 HVAC RESET

JUST YET ANOTHER VIDEO FOR THE GOOD OLD RAM, I FINALLY HAD THE DOOR ACTUATOR CLICK OF DEATH... THANKFULLY IT WASNT STRIPPED. BUT IT WAS STILL ANNYOING AND IN...

www.youtube.com

continue watching


IF you have a different HVAC Control setup
leave the hammer on the bench

 

[phxramguy]

Thank you for the info. I can't seem to find a video of how to reset the hvac with dual climate. All my knobs are different from every video I have seen.