HVAC cold air drivers' side and warm air passenger side

CHARLES REESE

MEMBER
2017 NISSAN ROGUE
90,000 MILES

My air conditioner blows cold air on the driver's side but warm air on the passenger's side. What would cause this?

Tuesday, April 12th, 2022 AT 6:30 PM

1 Reply

SQM

MECHANIC
6,383 POSTS

Hello,

This sounds like you have a faulty blend door actuator for the passenger side.
The blend door actuator controls the hot/cold flow of the air. A failed actuator can cause the air doors to get stuck in one position (in your case in heater mode).

https://www.2carpros.com/articles/replace-blend-door-motor

The blend door actuator is located on the HVAC box behind the dash.

I have attached diagrams below for your reference.

Please let me know of any questions.
Thank you.

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