PRESS and HOLD the DOWN arrow for 10-15 seconds to re-initialize the system. Once complete, the switch should display “027” (Figure 5). Once both sets of control boxes are reset, remove the programable hand switch and install the switch that came with your system.
Where is the actuator located?
The AC actuator is located above or below the coil. It can be set to either single speed or variable speed. When it is not working properly, your AC will be ineffective, and your power bills can skyrocket.
Try blasting cold or hot air and, under normal circumstances, the air should come out according to your controls. If you are trying to blast cold air, but it is coming out hot, even after giving your car a few minutes to adjust, then that is a pretty good indication that you need a new blend door actuator.
How do I test my blend door actuator? – Related Questions
What happens when the blend door actuator goes bad?
The most common symptom of the A/C Actuator going bad or when the Blend Door is stuck is when you feel inconsistent air flow coming in. The desired air you want whether it be hot or cold, is being diverted incorrectly, so you are not getting a consistent temperature out of the A/C system.
What is the difference between blend door and blend door actuator?
The blend door can open and close at various positions to block or allow air passing through the heater core in order to achieve the desired temperature inside of the vehicle. The blend door actuator is typically located closer to the heater core and evaporator than the mode door.
Is there more than one blend door actuator?
Newer vehicles that have separate front and back climate control systems actually have two blend door actuators: one for the front of the vehicle and one for the back. This allows for better, individualized climate control for the passengers.
How do I know if I need a new blend door actuator?
In systems that have multiple blend doors and actuators, you might notice that one vent outlet temperature is different from the other. For example, if the system has dual-zone climate control, a failed right front blend door actuator could prevent the climate control from changing on the passenger side.
Typically, vehicles have 3 or 4 actuators. Vehicles with rear controlled HVAC will often have additional actuators to control the auxiliary unit, bringing the total per vehicle to as many as 6.
Does the blend door need to be open or closed for heat?
If replacing a blend door actuator, check to make sure the blend door position is completely closed before installing the new blend door actuator. If the blend door is left open, even slightly, the temperature inside the vehicle will not match the A/C temperature selected.
How do I know if my blend door is stuck?
One of the most common signs of a blend door problem is when the defrost is turned on, but it takes a while to get going. Most of the time, the windshield won’t defrost, does so slowly, or remains foggy after a while.
Which actuator controls the temperature?
Temperature Blend Air Door Actuators: The temperature blend air door actuator controls the temperature of the air flowing from the vents by mixing hot and cold air from the heater core and the evaporator.
How do you bypass a blend door actuator?
How Do You Bypass A Blend Door Actuator?
Turn off the climate control system.
Disconnect the actuator.
Use a pin or paper clip.
Do I need to disconnect battery to change blend door actuator?
It is advisable to disconnect the battery to avoid electrical shocks. New HVAC blend door actuators are put in place. The battery is re-connected and your vehicle is started to conduct the air flow temperature test to ensure the new actuators are fully operational.
A blend door actuator controls the temperature and the flow of the air in a car. If your vehicle is only releasing cold air, or if you are not able to change the airflow, it may be because of a malfunctioning actuator.
How much does it cost to have a blend door actuator replaced?
The Average Cost to Replace a Blend Door Actuator Is $309-$355, Depending on if You Go to the Mechanic or DIY. This price range is based on national averages for all vehicles and does not factor in taxes, fees, or your particular make and model.
What causes a door actuator to fail?
There are several factors that can cause a door lock actuator to fail. One is corrosion. Over time, moisture, oil, dust, and debris can enter the actuator or the mechanical links.
What causes blend door actuator to click?
This clicking noise is the result of a failed door actuator; more specifically, it is because the teeth on the plastic gear inside have sheared and are now slipping. Nearly all of these failures have been traced back to using an aftermarket door actuator in the vehicle.
Can a blend door actuator drain your battery?
Can a bad blend door or mode door drain your battery? Yes, if it is continually cycling. Once the car is sleeping, listen for the sound.
How do you know if your actuator is broken?
Usually a bad or failing power door lock actuator will produce a few symptoms that can notify the driver of an issue that should be serviced.