Fan comming on when key is in ignition (406 1.9Diesel 1998)

Discussion in 'Peugeot 406' started by intruder, Mar 23, 2007.

  1. intruder

    intruder Guest

    I have a 1998 diesel Peugeot 406.
    My problem is that when i turn on the car the fan comes on and stays
    on sometimes even when the ignition is turned off.
    Fans sometimes comes on when the key is in ignition even when the car
    is not started. Occasionly the fans come on when the key is not in the

    Can anyone please help?
    intruder, Mar 23, 2007
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  2. intruder

    Chrs Guest

    Sounds like your thermostat sensor is playing up try fitting a new one.
    Chrs, Mar 23, 2007
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  3. See a previous post on this site. Sounds like the thermostat that feeds the
    bitrol control for the two fans is suspect.
    MICHAEL ROCHE, Mar 24, 2007
  4. intruder

    intruder Guest

    already tried that and it didnt work any other idea
    intruder, Mar 25, 2007
  5. Do you have air con because whenever this is enabled even in the screen
    demist position the fans will come on at slow speed.

    The fans will remain on at slow speed and sometimes fast if the engine is
    very hot after a long run.

    1) Are the fans running when you switch on from cold.
    2) What is your usual engine running temperature shown on the gauge this
    uses a different thermostat to sensor.
    3) Do you have climate control or straight air con (mine has climate
    control )


    MICHAEL ROCHE, Mar 25, 2007
  6. intruder

    Vanja Guest

    Fan in safe mode. Check both fans, one is probably not working.
    Vanja, Apr 1, 2007
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