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Range Rover Over Charge

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    Range Rover Over Charge

    Air con blowing warm air , sometimes coldish,
    1/ checked Freon, meter on red and almost off the scale.
    2/ vented the system, only warm air expelled,
    3/ gauge built up to red again
    4/ vented again (this time looking to vent till liquid replaced the air...as per internet advice)
    5/ continued venting till zero (no air or liquid)
    8/ tried refill Freon R134.
    9/ returned to meter on red and almost off the scale.

    its almost as if only pressurised air in the system

    can anyone explain

    located in south kent

    Sorry for the language confusion, but I can't decipher whether you pulled a vacuum on your system before adding refrigerant.