Here are the reasons behind the mode door actuator failure.
Air door actuator symptoms.
The concept of a door lock actuator works great until it doesn t.
First the electric motor can burn out rendering the unit non responsive so nothing changes when the temperature or.
If the plastic gear breaks this might affect the blend door.
Often adjusting the temperature settings ever so slightly can stop the noise temporarily.
A blend door actuator is made up of an electric motor that turns a plastic gear set in one direction or another which is connected to an air control door pivot at the final drive of the unit.
The climate control system of the car consists of various actuators and the mode door actuator is also a part of it.
As mentioned earlier a blend door actuator is linked to the air control door it rotates side by side with the electronic motor.
An actuator can become faulty if the plastic gear set turns out to be fragile and it breaks.
An actuator can go bad in of two ways.
The symptoms associated with this are often complaints that the front windshield is slow to defrost or remains foggy.
Exhaust fumes inside the cabin.
When the actuator fails or starts to fail you ll likely notice one or more symptoms that make your daily commute less pleasant.
Those are some of the heater blend door actuator symptoms you need to watch out for.
Causes of a bad blend door actuator.
The symptoms of a bad recirculation air door actuator are clicking noise coming from behind the dashboard.
How to test blend door actuator climate control heater temp control any car in this video we will show you how to test blend door actuator and to make sur.
Diagnosing the air conditioning air flow actuator the electronic actuator that controls the direction of airflow is called a blend door actuator.
On most vehicles the blend door hangs on a vertical or horizontal axis so turning.
A door lock actuator is basically a reversible motor or a solenoid on some vehicles with gears that operate the door lock.
It determines the location from which the air blows out and if it fails then it will affect the performance of your car.
If you hear a repeated light clicking sound coming from under the dash it can be a bad blend door actuator.
Symptoms a blend door actuator is bad.
A blend door actuator is linked to an air control door pivot found on the last drive of the unit.
Poor ac performance due to the outside hot air leaking into the hvac box and then the cabin compartment.
A plastic gear set is frequently rotated from one side to another by the electric motor.
