A/C works great, except on MAX? 308QV | FerrariChat
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A/C works great, except on MAX? 308QV

Discussion in '308/328' started by JazzyJay, May 14, 2008.

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  1. JazzyJay

    JazzyJay Formula Junior

    Oct 26, 2005
    367
    Connecticut
    #1 JazzyJay, May 14, 2008
    so i guess i'm one of the lucky one's with pretty good A/C, never tried the MAX setting until today. when i switched to the "max" setting, little or no cool air comes out. hmmmmm. i haven't started to troubleshoot yet since it just happened this morning. is the max setting on a different fuse or relay? fan still runs. haven't checked the compressor with max setting on versus off....

    any ideas?
     
  2. Dr Tommy Cosgrove

    Dr Tommy Cosgrove Three Time F1 World Champ
    Owner Rossa Subscribed

    May 4, 2001
    36,599
    Birmingham, AL
    Full Name:
    Tommy
    #2 Dr Tommy Cosgrove, May 14, 2008
    did it do it right away or did it take a little while before it stopped blowing cold?
     
  3. JazzyJay

    JazzyJay Formula Junior

    Oct 26, 2005
    367
    Connecticut
    #3 JazzyJay, May 14, 2008
    mostly right away.
     
  4. tatcat

    tatcat F1 World Champ
    Owner Silver Subscribed

    Sep 3, 2001
    11,013
    panama city beach FL
    Full Name:
    rick c
    #4 tatcat, May 14, 2008
    evaporator coil may be frozen blocking the air flow.
     
  5. Dr Tommy Cosgrove

    Dr Tommy Cosgrove Three Time F1 World Champ
    Owner Rossa Subscribed

    May 4, 2001
    36,599
    Birmingham, AL
    Full Name:
    Tommy
    #5 Dr Tommy Cosgrove, May 15, 2008
    I was thinking that but it usually takes a little while, not just right away...
     
  6. JazzyJay

    JazzyJay Formula Junior

    Oct 26, 2005
    367
    Connecticut
    #6 JazzyJay, May 15, 2008
    thanks for the replies. to be more specific, i used the A/C yesterday on a sunny 75 degree day. i had the fan on a low setting and the A/C on the regular setting. i ran it for about 5 minutes, and as usual, it blew reasonably cold air. i tried this on different fan settings, still ok.

    then i switched to MAX, and within seconds, the air warmed to ambient temperatures. switched fan low to high, same thing. switched back to regular A/C setting, and within seconds it went back to cool air.

    what is the actual difference on MAX? something internal to the compressor?
     

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