Mondial "Climate control" problem - need advice | FerrariChat
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Mondial "Climate control" problem - need advice

Discussion in 'Technical Q&A' started by Rival, Nov 2, 2005.

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  1. Rival

    Rival Formula Junior

    May 12, 2005
    399
    Misipi
    #1 Rival, Nov 2, 2005
    Last edited by a moderator: Sep 7, 2017
    Last few weeks, the heater in the Mondial has been working like a champ (actually, I've been surprised at just how hot the air coming from the heater gets!) In any event, I put the top up tonight, and went for a ride. Along the way, I noticed the heater air was noticeably cooler than normal, and I also noticed a consistent clicking coming from in front of the passenger seat. After I was able to locate the area from which the sound was coming, I isolated it to the black box in the photo (if it doesn't show up, its a box located outboard of the a/c dryer and above where the heater hoses enter the front under-hood area. - It is bolted to the firewall, and it connected by what appears to be a multi-wire lead with one connector).......can anyone identify this device for me, and can anyone advise me on what might be going on with it / if it's related to my heater issue......?

    Thanks
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  2. snj5

    snj5 F1 World Champ

    Feb 22, 2003
    10,213
    San Antonio
    Full Name:
    Russ Turner
    #2 snj5, Nov 2, 2005
    That looks to be Ferrari part #120672, Rilevatore di percorso, or the speedometer sensor (US-Aus). It's on page Tav. 126 in my parts book.
     
  3. Rival

    Rival Formula Junior

    May 12, 2005
    399
    Misipi
    #3 Rival, Nov 2, 2005
    Thanks.

    That's strange. With the heater on, the black box has a consistent clicking. When I turn the heater off, the box stops clicking. Knowing Ferrari, they're probably somehow connected.....any other ideas from anyone or are the two issues coincidental, but separate?
     
  4. Rival

    Rival Formula Junior

    May 12, 2005
    399
    Misipi
    #4 Rival, Nov 3, 2005
    Anyone have an idea on what might be causing a clicking noise to come from this box wheh the heater (A/E) switch is depressed?
     
  5. moysiuan

    moysiuan F1 Rookie
    Silver Subscribed

    Nov 1, 2005
    4,255
    Canada
    #5 moysiuan, Nov 25, 2005
    I have the same noise on my 88 mondial. Seems to occur only when the fan is on full high.
     
  6. snj5

    snj5 F1 World Champ

    Feb 22, 2003
    10,213
    San Antonio
    Full Name:
    Russ Turner
    #6 snj5, Nov 25, 2005
    Could it be somewhere else besides that part? The thermostatically controlled water flow electrovalve is right below the speedo sensor on the passenger side and mine has clicked ever since I remember unless the temp know was set full one way or another, and even then it would sometimes.
    check the on-line parts manual at FChat sponsor Ferrari-UK for drawings.
    Good luck!
    rt
     
  7. FasterIsBetter

    FasterIsBetter F1 Veteran

    Jul 22, 2004
    5,856
    NoNJ/Jupiter FL
    Full Name:
    Steve W.
    #7 FasterIsBetter, Nov 25, 2005
    As I understand the system, the heater valve is electrically controlled. The valve is open (will allow hot water to circulate) when there is no power in the circuit. The valve is closed when energized. So if the heat is fully on or fully off, you would not hear any clicking as there is either constant power or no power to the valve. When the termostat is set in between, it would make sense that the valve would receive intermittent power (clicking on and off) as it's regulating the flow of water through the heater coil.
     
    moysiuan likes this.
  8. Gauer

    Gauer Rookie

    Jan 5, 2022
    1
    Full Name:
    Hanspeter Gauer
    #8 Gauer, Mar 24, 2022
    Hello
    I have written a instruction for this well-known problem of the Mondial on how to solve the problem. (ventilation controller only full on, or off)
    I did it in German because I'm Swiss. Hope that helps because of the pictures anyway.
    I wish you success.
     

    Attached Files:

  9. theunissenguido

    theunissenguido F1 Rookie
    Owner Silver Subscribed

    Jan 21, 2004
    2,745
    Argent/Brasil
    Full Name:
    Guido
    #9 theunissenguido, Mar 25, 2022
    Danke ! Schöne Beschreibung/Lösung dieses Problems.
     

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