Postby smj999smj » Tue Mar 02, 2021 6:24 am
Well, those are controlled by different actuators, one for the mode (direction of airflow) and the other for the air/mix (temperature). Usually when people complain about the air coming out of the vents as being cold or not hot enough on these vehicles, it is usually due to air trapped in the heater core or a bad (stuck open) thermostat, with the majority of them being trapped air. Another thing with a lot of these vehicles (including mine) as that you always feel a little bit of cool air coming from behind the dash, around the area of the driver's right knee. I'm not sure if it's just a design of flow-though ventilation or just poor sealing on Nissan's part, but is very common.