How can I tell if my blend door actuator is bad?

Here are some of the most common symptoms that a blend door actuator has gone bad:

1. Clicking Sound. If you hear a repeated light clicking sound coming from under the dash, it can be a bad blend door actuator.
2. Wrong Temperature.
3. Two Different Temperatures.

To test the blend door operation and too double check that you are changing the correct actuator motor turn the blower motor on and work the door in each way. You will be able to feel the air change temperature or vent level. Compare the bad actuator to the new unit.

What makes up a blend door actuator motor?

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.

How does a blend door work in a car?

Blend doors move by way of a mechanical device referred to as an actuator. In some automobiles made prior to the 1980s, the blend door may have been actuated by a metal cable that was connected directly to the temperature control lever on the dashboard. A sure way to move the blend door, some systems took more than a little effort to operate.

What to do if your blend door blower is stuck?

If the door is stuck the heater plenum with need to be removed and the problem resolved before installing the new unit. To test the blend door operation and too double check that you are changing the correct actuator motor turn the blower motor on and work the door in each way.

Why do I hear a clicking noise when I open the front door?

I have a 2008 Impala LTZ and when I open any front door I hear a clicking noise. Thought it was blend actuator but can’t be sure. Any thoughts out there? Sounds like an HVAC actuator… Is it coming from the dashboard area? Also, when the car is running, does changing any of the HVAC settings (air temp, mode, etc) cause the clicking to start?

To test the blend door operation and too double check that you are changing the correct actuator motor turn the blower motor on and work the door in each way. You will be able to feel the air change temperature or vent level. Compare the bad actuator to the new unit.

Why did my F-150 blend door actuator go out?

If you switch it towards heat a little bit, and the noise stops, your F-150 blend door actuator has gone out. A common issue in these trucks is the failure of the potentiometer that senses when the actuator has turned fully.

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.