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Ford Focus: Unique A/C quirk, or common problem with common fix?

  1. #1
    Scott
    Guest

    Unique A/C quirk, or common problem with common fix?


    Got a 2001 Focus SE sedan (is that redundant?) that I've had more going
    on a year. Something I noticed early on, and have just been tolerating,
    is that when I turn the heater fan direction dial all the way over to
    the right (for windscreen defrost), and the fan is turned on, the A/C
    light comes on. It's not just that the LED is on, either, as I can
    distinctly hear the A/C start up. No biggie, since I just press the
    button to turn the A/C off, and it won't just "snap" back on of its own
    accord.

    Is this something someone else has run into, or have I got a
    particularly unique short somewhere in the dash that may or may not be
    worth hunting down? Other than this little oddity, the car behaves
    exactly as it should, and has run like-new so far.

    --
    Scott Thomas, rose-hulman.edu
    http://www.cs.rose-hulman.edu/~thomass/

  2. #2
    The
    Guest

    Re: Unique A/C quirk, or common problem with common fix?

    On Sat, 26 Feb 2005 14:49:25 GMT, Scott Thomas
    <rose-hulman.edu> wrote:
     

    imho:

    Actually in many cars it's a feature. By having the a/c come one, it
    dries the air by removing mosture. Now the air is directed upward to
    your winsheild drying it out. This helps to defog thewindows when the
    car is both warm andcold.

    So, I'm guessing this isn't a bug in your car, but I'm not a focus
    expert, so rely on your owner's manual for information.

    later,

    tom @ www.CarFleaMarket.com



  3. #3
    LJ
    Guest

    Re: Unique A/C quirk, or common problem with common fix?

    On Sat, 26 Feb 2005 14:49:25 GMT, Scott Thomas wrote:
     

    I remember reading somewhere that the behaviour is by design. I guess Ford
    are thinking that your screen will be demisted faster by air dried by the
    aircon.

    LJ

  4. #4
    Alan
    Guest

    Re: Unique A/C quirk, or common problem with common fix?

    In message <V%%Td.8969$news.prodigy.com>, Scott
    Thomas <rose-hulman.edu> wrote 

    It's designed to work this way.

    <Quote from page 37 of the UK owners manual circa 2001)

    Front screen defrosting/demisting
    Set the air distribution control to (icon = the windscreen position).
    Outside air will flow into the vehicle.. As long as the air distribution
    control is set to (icon = the windscreen position) re-circulated air
    cannot be selected and the air conditioning will be turned on
    automatically. Make sure that the blower is on.

    "The A/C extracts humidity from the air and the windows are demisted
    faster."
    --
    Alan
    mailto:clara.co.uk

  5. #5
    Dave
    Guest

    Re: Unique A/C quirk, or common problem with common fix?


    "Scott Thomas" <rose-hulman.edu> wrote
     

    Most, if not all, modern cars with A/C are like this. It helps to dry the
    air going over the windshield.

    I remember a few years ago I had a Dodge Shadow with this feature, and the
    A/C broke one hot foggy night during the height of summer and all of a
    sudden I had a hard time seeing . I had to crank the heat way up to get the
    windshield to clear, which was not fun.



  6. #6
    SayWhat?
    Guest

    Re: Unique A/C quirk, or common problem with common fix?


    "Scott Thomas" <rose-hulman.edu> wrote in message
    news:V%%Td.8969$news.prodigy.com... 
     

    I believe this is a design feature to have the a/c pump turning once in a
    while during the winter months. This may help keep the unit from seizing
    from lack of use during the winter months. 



  7. #7
    Michael
    Guest

    Re: Unique A/C quirk, or common problem with common fix?

    In alt.autos.ford.focus Scott Thomas <rose-hulman.edu>:
     
     

    You can be lucky it turns on the A/C LED at all, mine (1999)
    doesn't, while switching the A/C on. It's true that windscreens
    defrost faster with A/C turned on. The problem, never had any car
    which tended to fog inside as fast, as the Focus (wagon).

    There were some enhancements in production. Ordered the improved
    parts and mounted them, but it didn't helped much. Luckily, my
    Focus has the heated windscreen, which is of great help.

    --
    Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
    mail: echo qr | perl -pe 'y/a-z/n-za-m/'
    #bofh excuse 438: sticky bit has come loose

  8. #8
    Basic
    Guest

    Re: Unique A/C quirk, or common problem with common fix?

    'spostadothat.

    Rob



  9. #9
    Erik
    Guest

    Re: Unique A/C quirk, or common problem with common fix?

    My own 2004 focus sedan ghia only turns on AC when
    I press the AC button.

    But my parents 2004 C-Max automatically starts
    AC if you set the airflow to defrost the
    windshield. Probably intended as a user-friendly
    feature ?

    Erik M R

    In article <heiming.de>,
    michael+heiming.de says... 


 

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