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Thread: AirCon and airflow

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    Regular Member old cruiser's Avatar
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    Default AirCon and airflow

    Driving back from a journey today and never noticed it before, but when aircon is on and fan speed on 0 there is no difference between that and speed 1 and you can feel a reasonable airflow thru the face level vents , however, if aircon is turned off, the airflow drops right off when fan is on 0 position , then , when turned to position 1 you can feel the airflow which feels the same as position 0 with aircon on, if any of that makes any sense!! it would appear all fan speeds are working ok particularly when aircon is off , has any one else noticed this? don't think it's an issue, just never noticed it before!!
    Cheers Pete

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    Regular Member 98vectra's Avatar
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    Yes its normal mine is the same if you turn aircon on with fan off it automatically turns on fan at speed 1 .My dads Astra H is the other way around,the aircon will not turn on unless you have the fan on at least speed 1.

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    Regular Member old cruiser's Avatar
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    Quote Originally Posted by 98vectra View Post
    Yes its normal mine is the same if you turn aircon on with fan off it automatically turns on fan at speed 1 .My dads Astra H is the other way around,the aircon will not turn on unless you have the fan on at least speed 1.
    Nice one mate , thanks for the confirmation
    Cheers Pete

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    Regular Member Exclusive BV's Avatar
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    Quote Originally Posted by 98vectra View Post
    Yes its normal mine is the same if you turn aircon on with fan off it automatically turns on fan at speed 1 .My dads Astra H is the other way around,the aircon will not turn on unless you have the fan on at least speed 1.


    Yeah that was the norm with most cars i've had. The vectra electrics are certainly different

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    Regular Member old cruiser's Avatar
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    Funnily enough this is why I hadn't noticed it before as I always turn fan to No.1 when aircon is on thinking that that turns it on as it has been in previous cars, it was only when the missus turned the fan to 0 as she was getting a bit chilly I noticed there was no change in fan speed, funny old cars eh!! LOL
    Cheers Pete

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    Regular Member nokiaman1978's Avatar
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    strange just noticed this on way home tonight.

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    Regular Member old cruiser's Avatar
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    Quote Originally Posted by nokiaman1978 View Post
    strange just noticed this on way home tonight.
    Is a bit strange isn't it!
    Cheers Pete

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    Regular Member rushy's Avatar
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    Quote Originally Posted by old cruiser View Post
    Is a bit strange isn't it!
    Cheers Pete
    Maybe its some sort of safty thing to stop thing freezing up?

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    Regular Member AntB's Avatar
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    Mine does the same thing. Another odd one with mine is that with the AC on fan speed seven (max), the airflow only feels as fast as it would on 4 or five with the AC off. Anyone else have this?

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    Regular Member old cruiser's Avatar
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    Quote Originally Posted by rushy View Post
    Maybe its some sort of safty thing to stop thing freezing up?
    Guess it could be mate.
    Cheers Pete

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