Let's not confuse the air conditioning , heating and ventilation of the Renault Grand Espace 3. Heating and air conditioning are systems that can lower or increase the temperature. The very first with the help of the heat generated by the engine, and the second with a liquid refrigerant . Your ventilation is the totality of the circuits and mechanisms that allow air to reach the interior. The fundamental element is the kicker which sends air into your vehicle. If there is very little or no air at all, it is certainly a ventilation problem. We will see in this guide how ventilation works, so that we can better discern the problems and understand how to remedy them.
How does ventilation work on a Renault Grand Espace 3
The ventilation is primarily used to regenerate the air inside the interior of the Renault Grand Espace 3. For the blower, it often consists of a resistor, a turbine, and a motor. The lower the total resistance of the circuit, the faster the turbine turns. By turning the button in the vehicle, the resistance is therefore reduced.
Renault Grand Espace 3: usual ventilation problems
Dirty air ducts
If the ventilation turns but little air arrives in the passenger compartment of the Renault Grand Espace 3, it is plausible that your air shutters are blocked. Using a screwdriver flat, do not hesitate to disassemble the air shutter covers. It is only necessary to check inside if they are cluttered. If this is the case, do not hesitate to scour them, but also the valves.
Dirty cabin filter
If you perceive odors and the ventilation lacks intensity, the problem certainly comes from the cabin filter of the Renault Grand Espace 3. The latter becomes blocked and piled up bacteria with the years. It is quite common that it is dirty, it is there to purify the air that reaches you. There is no manufacturer's instruction as to when to change it. We simply advise you to disassemble it, check its condition. If the latter is particularly dirty, it will be necessary to replace it.
Resistance of the blower HS
If the ventilation buttons on the Renault Grand Espace 3 do not work well, or even not at all, it is certainly due to the resistance. This resistance increases the voltage to increase the speed of this turbine. Inconsistent ventilation operation is probably due to a resistance problem. This microchip is difficult to troubleshoot. It must be replaced.
HS blower motor
There are several relatively regular problems with the kicker. The brushes are deteriorated. Over the years, they will be able to deteriorate and generate electrical faults. Your fan may spin randomly, or even stop spinning at all. The problem may also arise from bearings of the fan motor. If the ventilation makes a high-pitched noise, comparable to a rusty mechanism, its bearings may require lubrication. Do not hesitate to comment on this guide in case your problem is different to help Internet users. Good walk!