hey all,

I have a mk3 mondeo tdci facelift (53plate) and I have a problem with my heaters, they heat up fine but i cant stop them from blowing on the windscreen, cant get them to blow at me or my feet, any ideas what the problem could be? the buttons on the heater control unit lights up when pressed as they should but the hot air wont change direction, ive done a quick search but cant seem to find the problem is

thanks for any help