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AC VENT/Blower Problem

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Old 06-06-2012, 07:53 AM
Niglaw's Avatar
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Cool AC VENT/Blower Problem

AC VENT/BLOWER PROBLEM

Hi All,

I have a 2005 D3 and having problems with the air conditioning.
At first the front vents were working fine but no air was coming out of the back upper vents.
After several weeks, when I put the AC on, i can feel it cooling inside the dashboard but no air coming out of the vents. I can feel the cool air on my legs and laps which means the AC is working. The thing is you can actually hear the sound of the AC blowing at various speeds when I modify the control which I believe that the blower is working.

What might be the problem?

Can anyone help?

Thanks

NL
 
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Old 06-06-2012, 07:10 PM
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The blend doors are stuck.
I do not know if it is common or not, the only way to fix it that I know of is to open the dash.
 
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Old 06-06-2012, 08:43 PM
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And may want to (while looking at blend doors) check the pollen filter, which is just above the fan. See attached from shop manual.
 
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Old 06-06-2012, 09:05 PM
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Good call Buzz!!
On my Sprinter the pollen filter clogged, no air from the vents, replaced fan, still no air.
Found out there was a pollen filter, took it out, threw it away, did not replace, no problems since.
 
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Old 06-07-2012, 06:23 AM
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After that you can try this..

Distribution motor self-test
The motor and flap operation can be checked using the on-board distribution motor self-test function.
The self-test can be initiated by pressing and holding the ECON and RECIRC buttons while turning the ignition switch to the ON position.
The control module will then compare the current motor position with the values stored in the module and will indicate an error by flashing the ECON LED (light emitting diode).
If there are no errors, the LED will go out and the system will function normally.
To confirm that there are no errors, turn the ignition switch to the OFF position, then back to the ON position.
Observe the operation of the programmed defrost LED.
If there are errors present, the programmed defrost LED will flash and the system will attempt to calibrate itself.
 
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Old 06-08-2012, 01:05 PM
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Thanks Everyone for the advice.

I had scheduled to run through the various options suggested this weekend but something happened which I can't explain.

For no obvious reason, yesterday when I was going home from work, when I turned on the AC, it worked perfectly with no problems whatsoever. Air was blowing out of the vents normally. Even air was coming out of the upper back vents unlike before.

Can anyone explain this?

Don't get me wrong, I'm happy the ACs working properly for now.
I'm hoping the fault doesn't reoccur.

Thanks,

NL
 

Last edited by Niglaw; 06-08-2012 at 01:09 PM.
  #7  
Old 06-08-2012, 07:11 PM
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Yes I can explain it, its a Rover, it has quirks, get used to it.
Mine has them.
Ed's has them.
Chris's has them.
Doug's has them.
You get my point, they all have them.
I could give you a page worth of stories about mine doing weird things.
 
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Old 06-08-2012, 10:53 PM
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The mouse that was gnawing your wiring got stuck somewhere else. The candy bar shoved down the air vent by kids finally melted. Same for the bag of M&Ms. Pencil or ink pen that slid down inside vent found a home. Bobby pins from SWMBO. Take your pick.
 
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