The blend door actuator is
a small electric motor in your car that controls your car’s climate control system
. … When you turn the dial to increase or decrease the temperature or flow of air, the signals go through the blend door actuator. It also controls the defrosters and other vents.
How much does it cost to replace a blend door?
The average cost ranges from
$100 to $400
for an HVAC blend door actuator replacement in your vehicle.
What is the purpose of a blend door?
A blend door is mounted within the heating and air conditioning system and
pivots to divert warm or cool air into different passages within the system to keep the passenger area at the desired temperature
.
What is a blend door on a vehicle?
The blend door is called a door because it really is
just a flat panel of plastic
. It opens or closes to allow air flow in whatever direction is required. It’s about as low-tech as your car can get, where the actual technology is in the actuator itself.
What causes blend door actuator to go bad?
What Causes a bad blend door actuator? A blend door actuator is
linked to an air control door pivot found on the last drive of the unit
; a plastic gear set is frequently rotated from one side to another by the electric motor.An actuator can become faulty if the plastic gear set turns out to be fragile and it breaks.
How do I know if my blend door is bad?
- Knocking. Knocking sounds can almost always be attributed to a failing blend door actuator. …
- Clicking. …
- Any Other Strange Noises. …
- Inconsistent Airflow. …
- Inconsistent Temperature. …
- Wrong Temperature.
How long does it take to fix a blend door actuator?
Replacing the blend door actuator is actually a fairly simple process, and it should take
no more than an hour
. So the labor will cost you around $75 – $150 depending on labor rates at your local repair shop. In general, you can expect the total cost to be no more than $400.
Can I drive with a bad actuator?
Can I drive with a blend door actuator problem? Driving with a bad blend door actuator
may not be comfortable
, but it won’t hurt the vehicle.
Can you fix a blend door actuator?
There’s a chance the mode or blend door actuator may be good but the door or linkage is binding, so check it before you replace the actuator (photo above). If the door binds, take it to a pro for replacement. However, if it moves smoothly, buy a
new blend door actuator from the dealer or auto parts store
.
How do I know if I have a bad actuator?
- Unusual noises coming from inside the door. …
- Power door locks behave erratically. …
- Power door locks do not function.
Where is the blend door?
The blend door actuator is typically located
closer to the heater core and evaporator than the mode door
.
Why is my car blowing cold air instead of heat?
Problems with the vehicle’s heating system can be either no air or only cold air coming out of the heating system. A car heating system blowing cold air can be due to
a faulty thermostat
, low coolant fluid level, malfunctioning heater core, a leaking cooling system, or problems with heating controls and blend door.
Can a bad blend door actuator drain battery?
The door lock actuator has a battery drain. The lock rods are pushed up and down by the auto door locks. The battery runs down when the interior lights stay on longer than normal. … It’s
a bad actuator if it doesn’t work 100 percent of the time
.
