DORMAN HVAC DOORS AND ACTUATORS

Switching between fresh and recirculating air

That's called your recirculation door.

When recirculation is selected, recirculation doors prevent outside air from being drawn into the system. This is useful for helping change the temperature in the vehicle quickly, and it also helps prevent outside odors from entering the vehicle.

Controlling the blend of hot and cold air

That's called your temperature blend door.

Blend doors allow you to get just the right temperature of air. It's a little like the thermostat in your home.

Determining which vents receive air flow

That's called your mode door.

The mode door allows you to select the vents that are blowing air. Common choices include the defroster, the dash itself, or the floor vents.

Air door

Air doors are the movable items within the car's ducts that route air. They're usually a fairly simple door that moves on an axle. They're robust, but can occasionally deform or break, especially at the axle, where torque from the actuating motor is highest. Dorman offers doors and door repair kits for select vehicles.

Air door actuator

The actuator is a small motor that moves the air doors. These motors and doors working together are what allows you to select the vents you'd like, the temperature of the air, and decide if you'd like fresh air or air that's already moved through the cabin.

Air door actuator kit

Dorman offers air door actuator kits for vehicles that require significant labor to access all the actuators. Having them on-hand can help reduce the chances of doing the same dash removal to suffer another failed actuator within a short time.