Do not confuse the air conditioning , heating and ventilation of your Toyota I-unit. Heating and air conditioning are mechanisms that decrease or increase the temperature. The first by means of the heat produced from the engine block, and the second with the help of a liquid refrigerant . Ventilation is the totality of channels and mechanisms that give the opportunity for air to reach the interior. The fundamental element will be the kicker which propels the air into your vehicle. In the event that the air reaches very little or not at all, it is certainly a concern of ventilation. We will see in this guide how ventilation works, so as to better identify problems and understand how to remedy them.
How a ventilation works on a Toyota I-unit
Ventilation first of all serves to regenerate the air in the passenger compartment of your Toyota I-unit. As for the pulser, it generally 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 rotating the switch in the passenger compartment, the resistance is therefore reduced.
Toyota I-unit: frequent ventilation problems
Dirty air ducts
If the ventilation works but little air reaches the interior of your Toyota I-unit, it is likely that the air shutters are blocked. Thanks to a screwdriver flat, do not hesitate to remove the covers from the air vents. You just have to look inside if they are blocked. If ever, do not hesitate to dust them, as well as the shutters.
Dirty cabin filter
When you discern effluxes and your ventilation is poor, the problem certainly comes from the cabin filter of your Toyota I-unit. It clogs and accumulates bacteria with the years. It is completely common that it is dirty, it serves to clarify the air that reaches us. There is no manufacturer's instruction as to when to change it. It is advised simply to remove it, check its condition. If it is completely black, it will be better to change it.
Resistance of the blower HS
If the ventilation setting of your Toyota I-unit never works well, or even really does not, it is certainly linked to the resistance. The resistance increases the voltage to increase the speed of the turbine. An inconsistent malfunction of your ventilation is probably due to a concern for resistance. This microchip is complex to troubleshoot. It is necessary to change it.
HS blower motor
There are two relatively recurring problems on the kicker. The brushes are deteriorated. As time goes by, they can deteriorate and generate false contact. The pulser can operate very randomly, and even not operate at all. It also happens that the concern comes from bearings of the motor. If ever the ventilation produces a hissing sound, comparable to a rusty mechanical, it happens that its bearings require lubrication. Feel free to comment on this guide when your concern is different to help other readers. See you soon!