Let's not confuse the air conditioning , heating and ventilation of your Renault Scenic. Heating and air conditioning are mechanisms that offer the possibility of lowering or increasing the temperature. The first thanks to the heat emitted from the engine block, and the second with the help of a fluid refrigerant . Your ventilation is the totality of channels and mechanisms that will allow air to enter the passenger compartment. The main component will be kicker which emits air into your vehicle. In the event that little or no air comes in, this is probably a concern for ventilation. We will see through this file how a ventilation works, in order to better identify concerns and understand the technique to resolve it.
How a ventilation works on a Renault Scenic
Ventilation first of all serves to circulate the air in the passenger compartment of your Renault Scenic. For the blower, it often consists of a resistor, a turbine, and a motor. The more the integral resistance of the circuit is lowered, the faster the turbine operates. By turning the knob in the passenger compartment, the resistance is therefore reduced.
Renault Scenic: usual ventilation problems
Dirty air ducts
If the ventilation is running but a small amount of air enters the interior of your Renault Scenic, it is plausible that the air flaps are blocked. Using a screwdriver flat, it is possible to remove the air flap valves. You just have to check inside if they are blocked. If ever it is the case it is possible to clean them, but also the valves.
Dirty cabin filter
If you perceive effluxes and your ventilation is weak, the problem probably comes from the cabin filter of your Renault Scenic. It clogs and piles up bacteria with time. It remains quite common that it is dirty, it serves to clarify the air that reaches us. There is no manufacturer's recommendation as to when to change it. It is only advisable to dismantle it, check its condition. If it is really black, it will be better to replace it.
Resistance of the blower HS
If the ventilation adjustment of your Renault Scenic is not working well, or even really not, it is probably linked to the resistance. The resistance is used to raise the voltage to be able to increase the speed of this turbine. A bizarre functioning of your ventilation is probably related to a concern for resistance. This small electronic chip is complex to repair. You will have to replace it.
HS blower motor
We can find two rather recurring concerns about the kicker. The brushes may be damaged. Over the years, the latter may wear out and cause electrical faults. Your kicker may work randomly, or may not work at all. The concern may also come from bearings of the motor. If the ventilation makes a sharp noise, comparable to a rusty mechanism, it is possible that its bearings require lubrication. We invite you to comment on this file when your concern is different in order to help our readers. Good road!