Remove the blend door actuator mounting screws from the hvac module.
Ford f150 blend door actuator fuse location.
If you have dual temperature control ac there is another actuator on the bottom of the case.
If the heater gets stuck on the hottest setting the heater blend door may be broken requiring replacement of the heater box to repair the issue.
A failed heater blend door or actuator can cause the temperature control for the hvac system to stop working.
Very common for that part to fail on your tru.
A ford f 150 s blend door is the device that controls how much heat or ac comes through the hvac system.
Remove the blend door actuator as an assembly with the actuator cam.
There is also and air inlet door actuator which is mounted behind the glove box on the far right side.
The temperature blend door actuator which is located behind the radio on top of the evaporator case.
I love my truck but i wish ford had fixed this problem by now.
Blend door actuator and related components.
Heres a step by step how to video on a temperature blend door motor actuator video for you 2004 2010 ford f150.
For the last 20 or 30 years in these trucks they have been prone to failure.
Remove the blend door actuator mounting screws from the hvac module.