SPONSORED LINKS

New blend door not getting power

Tiny
SURGEIMPULSE
  • MEMBER
  • 1994 FORD THUNDERBIRD
  • 199,800 MILES
Old blend door actuator quit working and new one will not get power or turn when I adjust temperature. I have a automatic climate control system. Is there a way to re-calibrate it, or make the new one work? It will not turn, I checked to see if the wires work and they do.
SPONSORED LINKS
Sunday, November 4th, 2018 AT 10:05 AM

10 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,840 POSTS
Lets try resetting the system. With the key on remove the heater (run) fuse for one minute then reinstall. Let me know what happens. Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Cheers, Ken
Images (Click to make bigger)
Thumb
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, November 5th, 2018 AT 3:26 PM
Tiny
SURGEIMPULSE
  • MEMBER
  • 67 POSTS
Yep I tried that, both with the engine on and just in the on position. Also pulled the memory after the rest did not work. Same results for each, nothing. Maybe a wire that tells the actuator to turn from the climate control system is broken or something, or I just have the wrong actuator.
Was this
answer
helpful?
Yes
No
+1
Wednesday, November 7th, 2018 AT 7:37 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,840 POSTS
I would remove the actuator and work the blend door pivot by hand to see if it works here is a guide to help. Also check the actuator to see if it moves with the system on.

https://www.2carpros.com/articles/replace-blend-door-motor

Please let us know what happens.
Was this
answer
helpful?
Yes
No
Wednesday, November 7th, 2018 AT 10:35 AM
Tiny
SURGEIMPULSE
  • MEMBER
  • 67 POSTS
I did do that, I actually inserted the peg from the old broken blend door actuator so I can manually open the door when the car is running. Works smoothly. I will just have it like that until I can come to a conclusion.
Was this
answer
helpful?
Yes
No
Wednesday, November 7th, 2018 AT 11:41 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,840 POSTS
Yes, it could be a connection issue. Here is the wiring diagrams and a guide to help us test the wiring. If everything checks out I would replace the actuator.

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken
Images (Click to make bigger)
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, November 8th, 2018 AT 9:23 AM
Tiny
SURGEIMPULSE
  • MEMBER
  • 67 POSTS
Could I try removing a high current fuse, like fuse 2? This fuse is 5A and control SATC.
Was this
answer
helpful?
Yes
No
-1
Tuesday, November 13th, 2018 AT 8:52 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,840 POSTS
It sounds like the HVAC controller might be bad. I would try a used unit to see what happens. All the connections good to the actuator from the controller?
Was this
answer
helpful?
Yes
No
Tuesday, November 13th, 2018 AT 10:53 AM
Tiny
SURGEIMPULSE
  • MEMBER
  • 67 POSTS
From the looks of it, the connections look good. I will be able to take the dash of in a few weeks when I have the time. Just see removing the whole dash as a last resort if it come to that. The plastic inside the dash is very brittle. The fuse which powers the SATC (Semi Automatic Temperature Control) will be my hope before I start thinking about getting a different climate controller or harnesses.
Was this
answer
helpful?
Yes
No
Tuesday, November 13th, 2018 AT 12:12 PM
Tiny
SURGEIMPULSE
  • MEMBER
  • 67 POSTS
Update: All methods of resetting the system failed. Will update once I have the time to take off the dash. Would running to a junkyard work or will the controller have to be the same?
Was this
answer
helpful?
Yes
No
Wednesday, November 14th, 2018 AT 9:11 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,840 POSTS
The controller must be the same you are on the right track. Let me know.
Was this
answer
helpful?
Yes
No
Wednesday, November 14th, 2018 AT 9:42 AM

Please login or register to post a reply.

Related Blend Door Actuator Not Working Content

VIEW MORE

Sponsored links