Need some HVAC help
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Senior User
Joined: Oct 2005
Posts: 255
Likes: 1
Need some HVAC help
I can not get my blend door actuator to move when I adjust the temperature selector. I have replaced the blend door actuator, and the selector switch. What else could be wrong?
BTW this is on a 06 F250 diesel with manual HVAC system
BTW this is on a 06 F250 diesel with manual HVAC system
Senior User
Joined: Jun 2002
Posts: 279
Likes: 0
From: Lehigh Valley, PA
Any new ideas?
Have a 00 EX and the rear selector works great.
Front manual selectior is not working fan and temp work but the selector is not working. ONLY blows on defrost. Will not change output to pannel or feet.
Took out the glove box and the arm moves a bit but not much at all.
Thinking its the HVAC controller. Anyone else have this problem? Dealer wants 90.00 to let me know what MAY... be wrong.
Front manual selectior is not working fan and temp work but the selector is not working. ONLY blows on defrost. Will not change output to pannel or feet.
Took out the glove box and the arm moves a bit but not much at all.
Thinking its the HVAC controller. Anyone else have this problem? Dealer wants 90.00 to let me know what MAY... be wrong.
Junior User
Joined: Oct 2010
Posts: 59
Likes: 0
From: Chicago
have you checked the shaft for the blend door. It's made of plastic and known to break.
here is a site that has a fix for it. 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, Ford F250, F350, F450, blend door auto AC heat replacement part
Other wise if it is broking you would need to pull the dash and hvac box.
here is a site that has a fix for it. 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, Ford F250, F350, F450, blend door auto AC heat replacement part
Other wise if it is broking you would need to pull the dash and hvac box.
Senior User
Joined: Jun 2002
Posts: 279
Likes: 0
From: Lehigh Valley, PA
dont think its the blend door.
Heat and AC work fine - they just only blow out of the defrost.
Im pretty certain that its the HVAC control on the dash. Just wanted to see if any one else had this issue and be sure before I order it.
Heat and AC work fine - they just only blow out of the defrost.
Im pretty certain that its the HVAC control on the dash. Just wanted to see if any one else had this issue and be sure before I order it.
Junior User
Joined: Oct 2010
Posts: 59
Likes: 0
From: Chicago
Blend door was for the OP. For your concern it might be a vacuum problem you could get a vacuum hand pump and try that to see. If you have the Electrical HVAC you will have to check the wiring
Cargo Master
Joined: Oct 2010
Posts: 2,089
Likes: 16
If it is the auto climate control hvac controller, they have been known to cause that problem.I would verify it had a vacuum source to it before replacing. Wife had a mercury grandmarquis with the same box and had two in it before it was 4 years old. Ran into the lady that bought it from me during christmas and she mentioned having to replace it again
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Cargo Master
Joined: Jan 2001
Posts: 2,726
Likes: 5
From: Slatington, PA
Have a 00 EX and the rear selector works great.
Front manual selectior is not working fan and temp work but the selector is not working. ONLY blows on defrost. Will not change output to pannel or feet.
Took out the glove box and the arm moves a bit but not much at all.
Thinking its the HVAC controller. Anyone else have this problem? Dealer wants 90.00 to let me know what MAY... be wrong.
Front manual selectior is not working fan and temp work but the selector is not working. ONLY blows on defrost. Will not change output to pannel or feet.
Took out the glove box and the arm moves a bit but not much at all.
Thinking its the HVAC controller. Anyone else have this problem? Dealer wants 90.00 to let me know what MAY... be wrong.
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