[Wiggi]

During the drive across North Wales to Holyhead we noticed the car was getting far too warm. Climate was in auto for 20 degrees however there was virtually no air flow through the vents, what air there was was very cold. Turning the fan to max made no difference to the flow but the fan speed did increase. Last resort was to try the rapid de-mist button but this crashed the whole system. After a fuel stop the system operated normally with gale force cold air flow however the above symptoms have reoccured. Any idea's