Hot Air Constantly ON

Discussion in 'Tech/Mech General' started by Spinout, May 29, 2014.

  1. Spinout

    Spinout Read Only Funster

    Joined:
    Apr 17, 2014
    Messages:
    30
    Likes Received:
    2
    Location:
    London
    Hi
    I have a FF Tabbert, Alko chassis with a Fiat drive chain 1987.

    The problem is the heating and too much of it. The knob is in the cool position ie all the way to the right, its still pumping hot air into the cab.

    Where do I start looking to remedy this.

    Many thanks

    :thumb:
     
  2. Tootles

    Tootles Funster

    Joined:
    Sep 14, 2013
    Messages:
    8,991
    Likes Received:
    30,887
    Location:
    Lancaster
    Your heating system is right on the crux of change, but I think that the control lever pushes a vent to the inside of the cab for hot, or the outside for cold. You may be able to lie on the cab floor, look up, and shove the panel to vent outside with a screwdriver, as a short term measure. If it is the sliding vent type, they work on a cable, which probably wont have snapped, but the plastic holding clip may have.
    If it's the earlier type, the hot water is switched off by a cable control to an engine valve, but I think it's the vent panel with yours.
     
  3. dave newell lvs

    dave newell lvs Trader-Vehicle Services

    Joined:
    Oct 31, 2008
    Messages:
    2,514
    Likes Received:
    3,319
    Location:
    Telford, Shropshire
    1987 Fiat base is also known as Talbot Express, the hot cold control on the dash connects to a tap in the heater circuit under the right hand side of the dash. Its not unknown for this tap to sieze up and/or the operating cable to come off. Replacement valves are not available anymore but I have known a simple gate valve to be fitted on the heater pipe allowing manual control, albeit byy fiddling around in the right hand footwell.

    D.
     
    • Like Like x 2
  4. Tootles

    Tootles Funster

    Joined:
    Sep 14, 2013
    Messages:
    8,991
    Likes Received:
    30,887
    Location:
    Lancaster
    Thanks Dave, I was struggling with the year as to which system was fitted. :thumb::thumb:
     
  5. CHRI$

    CHRI$ Funster

    Joined:
    Jul 26, 2009
    Messages:
    5,595
    Likes Received:
    7,096
    Location:
    england
    someone might have bypassed the heater matrix control valve,because it was leaking or faulty:cry:
     
  6. magicsurfbus

    magicsurfbus Funster

    Joined:
    Oct 11, 2010
    Messages:
    3,503
    Likes Received:
    8,258
    Location:
    NW England
    A knob producing too much hot air eh?

    Was your van pre-owned by a politician?
     
  7. Spinout

    Spinout Read Only Funster

    Joined:
    Apr 17, 2014
    Messages:
    30
    Likes Received:
    2
    Location:
    London
    More than likely!

    Thanks everyone. I managed to close the valve manually, under the dash which seem to do the job.:thumb:
     
Loading...

Share This Page