Basically, the temperature blend door is the instrument responsible for sending air over the heater when you turn on the heat, and air over the cooler when you turn on the air conditioning. So, if this door isn’t working, you aren’t going to face a terrible accident, but definitely some inconvenient temperatures.
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.
How do you reset a blend door actuator?
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.
How do you know if your blend door actuator is not working?
Incorrect temperature: This is one of the more common symptoms of a defective blend door actuator. If your car’s temperature won’t heat up when you want it to, the air conditioning won’t expel cool air or it will only get so hot or so cold, then it’s probably the blend door actuator.
Does blend door actuator control temperature? – Related Questions
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.
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 you diagnose a bad actuator?
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.
How do you test if an actuator is working?
To test a linear actuator’s current draw, simply connect a multimeter in series with one of the leads of a powered linear actuator, and watch the amperage reading as you extend/retract the rod. Based on the reading, you can determine a power supply that will be able to handle that current draw.
Actuators are designed and manufactured to the most exact tolerances possible, and every product must be tested and produced with the utmost care. A failure could result in a catastrophic spill, explosion, chemical release, environmental contamination, power loss, property damage, injury, or even loss of life.
How do I know if my actuator is working?
What happens when blend door actuator fails?
A faulty actuator can cause the blend door to be stuck in one position or another, resulting in an outlet temperature that’s hotter or colder than the desired setting.
What controls the blend door?
An air blend door actuator is a small electric motor that houses in a plastic construction. In the unit, a door position sensor is incorporated, too, that sends information to the climate control computer. This actuator hence controls the temperature and air direction as per the settings.
What causes door actuators 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. These will react to form rust, which will weaken the mechanical links and can cause failure of the actuator.
Is the blend door actuator expensive to fix?
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.
How long does it take to replace a blend door actuator?
The blend door actuator replacement process should take about 30 minutes to complete. But the completion time may take longer than expected if you run into problems.
As mentioned before, you can check this information in the user or service manual, but the majority of manufacturers recommend the actuator is replaced at 10 years.
How do I know if I need a new blend door actuator?
When you start your car or the AC system, the knocking sound will start, and that’s when you know that you need to get your blend door actuator replaced. Another sign that you might have issues with your blend door actuator is a clicking sound coming from the dashboard.
How much does it cost to replace a blend door actuator at a dealership?
The average cost for HVAC blend door actuator replacement is between $322 and $373. Labor costs are estimated between $193 and $243 while parts are priced at $130. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location.