Passenger side gets hot air only

[jabtyler]

I have a 2018 jlur and I just started putting hot air out of the passenger side vents. I tried changing temps in both manual and auto, changing from feet to mix and all face and it changes positions but still only hot air. I assume it’s some kind of stuck blend actuator door but I don’t know how to check for that. Any thoughts?
thanks.

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[ArcadeTracks]

I doubt this is the problem, but are the two sides in sync? They can be controlled independently, so there's a chance you're adjusting the driver's side only

 

[kah.mun.rah]

I assume it’s some kind of stuck blend actuator door but I don’t know how to check for that. Any thoughts?
thanks.

Take out your glove box and watch the door where the cabin filter is as your switch from a/c to heat.

 

[alphawolff]

Take out your glove box and watch the door where the cabin filter is as your switch from a/c to heat.

this is the air inlet for the recirculator and has absolute zero functionality on blend door actuation.


anyway; scan tool and run hvac calibration. see if an actuator fails. if all pass verify vent temp sensors are accurate. if all check ok you'll have to pull the passenger side blend door and manually move the blend door arm to see

 

[crjonesfl]

This happened in an Audi I owned, and was related to low freon in the AC cooling system . Not sure if Jeep behaves the same way, but may be worth checking out.

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