Let's not confuse the air conditioning , heating and ventilation of this Nissan Maxima 2. Heating and air conditioning are mechanisms that can lower or increase the air temperature. The very first thanks to the heat generated from the engine block, and the other with a liquid refrigerant . Your ventilation is all of the circuits and systems that allow air to reach the interior of the vehicle. The main component is kicker which sends air into your cabin. If the air hardly or not at all arrives, it is undoubtedly a concern of ventilation. We will see in this post how a ventilation works, in order to better perceive the dysfunctions and understand how to resolve it.
How a ventilation works on a Nissan Maxima 2
The ventilation is used first to circulate the air in the passenger compartment of this Nissan Maxima 2. As for the blower, the latter is generally made of a resistance, a turbine, and a motor. The lower the total resistance of the electrical system, the faster the turbine turns. By rotating the switch in the passenger compartment, the resistance is therefore reduced.
Nissan Maxima 2: common ventilation issues
Dirty air ducts
If the ventilation works but a small amount of air arrives in the passenger compartment of this Nissan Maxima 2, it is likely that the air shutters are blocked. Thanks to a screwdriver flat, you can remove the valves from the air vents. It will suffice to check inside if they are congested. If this is the case you can dust them, but also the valves.
Dirty cabin filter
In case you discern odors and the ventilation lacks intensity, the problem probably comes from the cabin filter of this Nissan Maxima 2. The latter clogs and accumulates bacteria as time goes by. It is completely common that it is dirty, it is there to purify the air that reaches us. There is no manufacturer's instruction as to when to change it. We just advise you to remove it, check its condition. If it is completely black, it will need to be replaced.
Resistance of the blower HS
If the ventilation adjustment of your Nissan Maxima 2 does not work well, or not at all, it is probably related to the resistance. The resistance is used to increase the voltage to be able to increase the speed of this turbine. An inconsistent ventilation malfunction is probably due to a concern for resistance. This little microchip is complicated to troubleshoot. It will have to be replaced.
HS blower motor
We can find two rather recurring malfunctions concerning the blower. The brushes are damaged. The more time passes, they will be able to deteriorate and produce false contact. The fan may run randomly, or stop spinning at all. The concern may also come from bearings of the motor. If the ventilation whistles, like a rusty mechanic, it is possible that its bearings lack lubrication. We invite you to comment on this post if your concern is different in order to help other readers. Enjoy the road!