A/C Condenser Fan won't shut off | FerrariChat

A/C Condenser Fan won't shut off

Discussion in '348/355' started by 3forty8, Jul 30, 2011.

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  1. 3forty8

    3forty8 F1 Rookie
    Owner

    Apr 25, 2006
    2,713
    San Diego
    Full Name:
    Eric
    Just got back from a drive, shut off the car, and the A/C condenser fan in the front bumper continued to run. I let it go for a couple of minutes, re-started the car, cycled the HVAC control back and forth, turned the A/C off and turned the car back off. Fan still on.

    I then disconnected the battery and removed relay "C" from the boot fuse panel (relay that controls switching power on/off to fan), re-connected the battery - and the darn fan started right back up again like it is possessed! In theory the fan should not be able to run with the relay removed - or so I thought.

    I probably won't have a chance to dig into it until next weekend, but if anyone has any ideas I'm all ears. I'm not getting any error codes from the HVAC unit or ECUs, and everything else seems to be shutting off as it should. Maybe the relay socket has melted across the contacts in the fuse/relay board? The irony of trying to get something to stop running on these cars, lol! :)
     
  2. 3forty8

    3forty8 F1 Rookie
    Owner

    Apr 25, 2006
    2,713
    San Diego
    Full Name:
    Eric
    Okay, I must be getting old and senile - I had the diagram for the relays oriented wrong and pulled the wrong bloody relay, lol. Relay was bad, two second fix. Old relay was fried into the "activated" (current across the terminals) position. Nothing to see here! :D
     
  3. PAP 348

    PAP 348 Ten Time F1 World Champ
    Lifetime Rossa Owner

    Dec 10, 2005
    100,220
    Mount Isa, Australia
    Full Name:
    Pap
    Sticking relay would have been my first thoughts mate! Well done. :):)
     
  4. plugzit

    plugzit F1 Veteran
    Silver Subscribed

    Dec 1, 2004
    7,784
    Redondo Beach, CA
    Full Name:
    Bruce Bogart
    Nothing to see? Something working when it shouldn't be on a Ferrari? That's a FIRST!!!
     

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