Morning, I have replaced the blend door actuator in April when I got this truck; and then blend door yesterday. My ac worked before doing this but no heat. So I knew that the blend door was broken. Now my problem is with the new blend door actuator, when i turn on the truck to see if the actuator is working and is turning, it does not turn. I can hear the actuator working but not moving. Could this be a control **** issue? I'm stumped..