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Problem with air con

Rosey
Rosey
in General Ford Related Discussions

Featured Replies

Had problems with air con, sometimes comes on when start car, sometimes when turn engine off , and won,t go off.

Had new sensor and cooler fan relay but still doing it.

Any help would be appreciated 

  • Quote
    • Confused 1


    29 minutes ago, Rosey said:

    ...sometimes when turn engine off , and won,t go off.

    Can I confirm, that sometimes when you turn engine off, the blower continues to operate and you get chilled air?

  • Quote
    • Author
    14 hours ago, StephenFord said:

    Can I confirm, that sometimes when you turn engine off, the blower continues to operate and you get chilled air?

     

  • Quote
    • Author

    Sorry , fan, not air con

  • Quote

    Entirely normal if your engine is hot for radiator fan to run a minute or so after engine switch off to help cooling. Surprised your 'mechanic' never suggested that?

  • Quote
    • Like 1
    2 hours ago, Rosey said:

    Sorry , fan, not air con

    Is it a Diesel?

  • Quote
    • Like 1
    • Author

    Yes diesel,  only stays on  sometimes,  drained battery the other week.

    Have changed sensor and relay still doing it.

     

  • Quote
    • Author

    Sometimes the fan comes on as soon as you start engine,  even when car is frozen,  sometimes only when you turn engine off, but then won't stop, drained battery completely last time.

  • Quote
    10 minutes ago, Rosey said:

    ...  drained battery the other week....

    Drained battery?? Exactly how long did the radiator fan remain on? Roughly the fan would use about 200w, it'd need to run for over 3 hours for a fully charged battery to drain... Exactly what 'sensor' was changed?

  • Quote

    If this is a diesel with a DPF then the fan runs while it's doing a DPF regen.  If it fails a regen the night before, the fan will run on after switching the engine off, and it will start one again as soon you start the engine the next day.

    If it's a diesel without a DPF, you can just unplug the fan for now to prevent the battery drain.  The coolant won't ever get hot enough to need it in winter.

  • Quote
    • Like 2
    • Author

    Thanks for all the advice.

  • Quote

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