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.
Air door actuator symptoms.
An actuator can go bad in of two ways.
A door lock actuator is basically a reversible motor or a solenoid on some vehicles with gears that operate the door lock.
On most vehicles the blend door hangs on a vertical or horizontal axis so turning.
Here are some of the most common symptoms that a blend door actuator has gone bad.
A blend door actuator is linked to an air control door pivot found on the last drive of the unit.
As mentioned earlier a blend door actuator is linked to the air control door it rotates side by side with the electronic motor.
Causes of a bad blend door actuator.
Running hot cold heater and air conditioner blend door failure is a common problem on many popular passenger car truck suv and van models.
Diagnosing the air conditioning air flow actuator the electronic actuator that controls the direction of airflow is called a blend door actuator.
A symptom of this problem is an inability to effectively control the vehicle s interior temperature.
First the electric motor can burn out rendering the unit non responsive so nothing changes when the temperature or.
The symptoms associated with this are often complaints that the front windshield is slow to defrost or remains foggy.
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.
The climate control system of the car consists of various actuators and the mode door actuator is also a part of it.
Symptoms a blend door actuator is bad.
The concept of a door lock actuator works great until it doesn t.
It determines the location from which the air blows out and if it fails then it will affect the performance of your car.
Often adjusting the temperature settings ever so slightly can stop the noise temporarily.
If you hear a repeated light clicking sound coming from under the dash it can be a bad blend door actuator.
Exhaust fumes inside the cabin.
If the plastic gear breaks this might affect the blend door.
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.
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.
