Let's not confuse the air conditioning , heating and ventilation of your Nissan Interstar. Heating and air conditioning are systems that offer the possibility of lowering or increasing the air temperature. The first thanks to the heat generated by the engine, and the second with the help of a liquid refrigerant . The famous ventilation is the totality of the circuits and mechanisms that give the opportunity for air to arrive inside the vehicle. The main element is the kicker which emits air into your vehicle. If there is little or no air supply, it is probably a ventilation problem. We will discover in this guide how a ventilation works, to be able to better perceive the concerns and understand how to solve it.
How a ventilation works on a Nissan Interstar
The ventilation is used first to regenerate the air in the passenger compartment of your Nissan Interstar. As for the blower, the latter generally consists of a resistor, a turbine, and a motor. The lower the total resistance of the electrical system, the faster the turbine runs. By turning the switch in the passenger compartment, the resistance is therefore reduced.
Nissan Interstar: usual ventilation problems
Dirty air ducts
If the ventilation works but very little air reaches the interior of your Nissan Interstar, it is likely that your air shutters are blocked. Using a screwdriver flat, do not hesitate to remove the air flap valves. You just have to check inside if they are blocked. If ever, do not hesitate to clean them, but also the shutters.
Dirty cabin filter
When you smell odors and the ventilation lacks intensity, the concern probably comes from the cabin filter of your Nissan Interstar. The latter is blocked and piled up bacteria with the years. It is completely normal for it to be dirty, it is used to purify the air which reaches you. There is no manufacturer's instruction as to when to replace it. We simply advise you to remove it, check its condition. In case it is particularly black, it will be necessary to replace it.
Resistance of the blower HS
If the Nissan Interstar's ventilation settings are not working right, or even really not, it's probably due to the resistance. This resistance serves to increase the voltage to amplify the speed of this turbine. A suspicious ventilation dysfunction may be linked to a concern for resistance. This microchip is complicated to troubleshoot. You will have to replace it.
HS blower motor
There are several rather recurring concerns about the kicker. The brushes are damaged. Over the years, they can deteriorate and cause false contact. The fan may run randomly, and may not even work at all. It also happens that the concern comes from bearings of the motor. If the ventilation hisses, comparable to a rusty mechanism, it is possible that its bearings require lubrication. Feel free to comment on this guide when your concern is different to help other readers. See you soon!