Hot air on drivers side and cold on passenger side

[aaberg]

Originally Posted by Mr_Draco

The blend door controls hot and cold for both sides. The actuator is on the drivers side so if the connection point between the door and the actuator broke (the most common issue regarding the door), the drivers side could be open a little allowing heat to flow to that side but not the passenger side. This also explains why it doesn't change when you change the settings.

Thank you for your answer. Make sens.