First the electric motor can burn out rendering the unit non responsive so nothing changes when the temperature or.
1997 ford explorer blend door replacement.
Its a 1 hour job this way.
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.
Remove and replace the door.
The round protrusion is the blend door hinge post.
Air blend door repair 98 ford explorer.
See explorerforum online for more info.
I used duct tape.
This video will explain how to access and repair the heat ac blend door on a ford explorer or mercury mountaineer.
An actuator can go bad in of two ways.