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Correction for 2004 crown vic

I stated the door blender was replaced and when that didn’t work, they replaced the control head. After they replaced that the air would come out when it was suppose to ,but you could not control the temperature, not matter if you put the ac, or heat on. it was the same temp. So they said it must be the sensor right next to the door blender. Still the same.



Again thank you for your help.



Bert

Well, that’s very different then.
Is this auto or manual climate control?
Has anyone verified that the blend air door is not stuck?

What tardis asked, is this manual (knobs) or electronic (digital and buttons)? I hope these people have not charged you yet. You have spent a lot of money if they have. I doubt that they know what they are doing. I don’t think it is hard to tell if the blend door is moving and whether it is bound up or the control is failing to ask it to move.

You might consider performing this test to see if anything comes up.

http://www.aircondition.com/dsmobileac/eatc.html

The unit will show a bunch of gibberish for 20-30 seconds before displaying any codes.
This is slightly crude with no memory involved and sometimes there may be a false code or two but it’s worth a shot just for the heck of it.