308 blower switch position | FerrariChat

308 blower switch position

Discussion in '308/328' started by Trahanm, May 10, 2016.

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  1. Trahanm

    Trahanm Karting

    May 10, 2013
    73
    Rochester Hills MI
    Full Name:
    Marc Trahan
    #1 Trahanm, May 10, 2016
    Last edited by a moderator: Sep 7, 2017
    Hello folks,

    I have a question regarding the proper function or position of the fresh air blower switch position on my 308 GT4.

    When the switch is in the straight ahead position, the fan motors are operational and the indicator light is on. When the switch is in the lowered position,the fans are off and the light is off.

    This seems backwards to me. Is the incorrect switch installed, or is the function correct.

    Any feedback will be appreciated.

    I attached pictures to clarify.

    Regards,

    Marc
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  2. piezo

    piezo Formula 3

    May 27, 2011
    1,533
    Hong Kong
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    Steven
    Do you have the OM? The correct operation of the switch should be stated there.
     
  3. Crowndog

    Crowndog F1 Veteran

    Jul 16, 2011
    7,042
    Fairfield,Pa
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    Robert
    #3 Crowndog, May 10, 2016
    Last edited: May 10, 2016
    I suppose there are two possibles:
    1) that's how it is supposed to be
    2) maybe the switch was replaced at one time with the wrong switch. Or the switch has both contacts and was wired wrong.
     
  4. Trahanm

    Trahanm Karting

    May 10, 2013
    73
    Rochester Hills MI
    Full Name:
    Marc Trahan
    The manual only says to turn it on.

    Checked the switch, it only has two wires. Reversing the wires has no effect.

    Before I order a new switch, I wanted to hear from someone who has a 308.

    Marc

    Marc
     
  5. BigTex

    BigTex Seven Time F1 World Champ
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    Dec 6, 2002
    79,221
    Houston, Texas
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    Bubba
    Why don't you loosen the jamb nut, and spin it 180 degrees???

    If the wires bind, rotating right, try taking it to the left.....
     
  6. antoninosavoca

    antoninosavoca Formula Junior

    Aug 9, 2011
    283
    Montesilvano Italy
    Full Name:
    antonino savoca
    Simply , rotate the switch 180° and it will be the correct way!
     
  7. BigTex

    BigTex Seven Time F1 World Champ
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    Salute!!!!
    :D :D :D
     
  8. Trahanm

    Trahanm Karting

    May 10, 2013
    73
    Rochester Hills MI
    Full Name:
    Marc Trahan
    Folks,

    Rotatingthe switch won't solve the problem. It just reverses it.

    Can someone who has a 308 tell me how thiers works.

    Marc
     
  9. dflett

    dflett Formula 3

    Jun 24, 2005
    1,603
    NY
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    David
    That's got to be be the wrong switch hasn't ? No one would design it to work like that. Maybe pull that switch and one of the others to compare Lucas part numbers. If you need replacement Lucas switches, U.K. eBay is a pretty good source.
     
  10. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
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    Jan 11, 2001
    25,155
    30°30'40" N 97°35'41" W (Texas)
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    Steve Magnusson
    The schematic in your OM shows that the blower switch should have 4 male spades with three wires connected and one male spade not connected. Try moving the yellow (G) wire to the presently unused male spade (the way the switch internals work, if the yellow wire was/is put on the wrong spade, it will reverse the logic as you now have).
     
  11. skullyspice

    skullyspice Formula Junior
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    Jun 18, 2013
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    erik
    mine works as you suspected. down turns on the fan, up is off.
     
  12. Jdubbya

    Jdubbya The $10 Trillion Man
    Silver Subscribed

    Dec 28, 2003
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    John
    I don't get your comment. If you turn the whole thing upside down like the two guy mentioned then on will be up and off will be down like you think it should be.

    Edit: Ok never mind, now I see. It's because the "home" position is in the center. Not like a light switch which flipping it 180 would change the operation. Yours would now flip up above center for off and then back to center for on.
     
  13. 2281GT

    2281GT Formula 3
    Owner Silver Subscribed

    Oct 9, 2006
    1,132
    Germany
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    Markus
    The switch is correct, like mine. But the wiring is obviously not correct. Try what Steve posted above, might run.
     
  14. godabitibi

    godabitibi F1 Veteran
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    Jan 11, 2012
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    Claude Laforest
    I was going to suggest has Steve said. These switch usually have a NO and NC fonction in the same position you only choose the one you need by connecting to the proper spade. Vice and versa.
     
  15. Trahanm

    Trahanm Karting

    May 10, 2013
    73
    Rochester Hills MI
    Full Name:
    Marc Trahan
    Thanks folks,

    It looks like the switch is incorrect.

    This car sat in a restoration shop for a few years, and when I first saw the car the switch was missing, most likely used to repair another car.

    It is obvious now based on all the info received in this post that the wrong switch was installed as a replacement.

    Will order a new one.

    Marc
     
  16. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
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    Jan 11, 2001
    25,155
    30°30'40" N 97°35'41" W (Texas)
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    Steve Magnusson
    #16 Steve Magnusson, May 12, 2016
    Last edited: May 12, 2016
    No, the information in this thread indicates that you have the right switch but the wires were just connected to the wrong terminals when reassembled. Or are you saying that you have physically inspected the actual switch, and it does not have 4 male spade terminals? The FAN and FOG switches should be identical -- compare them to confirm/deny if you have the correct FAN switch.
     
  17. BigTex

    BigTex Seven Time F1 World Champ
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    Dec 6, 2002
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    Bubba
    I think "visually aligned when off' is what he was looking for..
     
  18. Crowndog

    Crowndog F1 Veteran

    Jul 16, 2011
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    Robert
  19. jimgolf1

    jimgolf1 Formula Junior

    Aug 23, 2013
    375
    Reno, NV
    Full Name:
    Jim Small
    My GT4 is the same. Down is on and up (or straight out is off). My guess is they mixed it with one of the other switches in your car.
     

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