Have Ford Questions? Ask a Mechanic for Answers ASAP
Hi, I’m Ron and I can help you.I have been in this business since 1975 and also teach automotive repair. I am confidentwe can resolve your problem together. Please understand that I don't know your skilllevel. I can't see, smell, hear, or touch the vehicle either, so it may take a few replies toget to satisfactory results. Please be patient!I also try to give all of the information you may need, expecting a “positive rating” inreturn. I will also continue assisting you after you have rated me, if necessary. If thereis any reason I cannot get a positive rating, please let me know why “in advance”, so Ican go another direction for you. I am sorry you’re having this problem; I’ll help youthrough it.
The actuator is electrically worked, it's not uncommon for them to fail. It's called a blend door.
OK, make sure that it is getting power and ground too. It has to be activating by the head unit first.
OK, we know you can get heat by manually moving the door. What we don't know is why it's not getting that signal. I need your help here to check all connectors and powers and grounds. You may even need to do voltage drop testing to find the affected wire.
Do you need a wiring diagram or can you back track they wire. If you need the diagram, I'll have to get it to you tomorrow if that's ok.
here it is