It's a 2003 Fiesta - the dial for the settings for screen, feet etc doesn't work although it will 'click' into place on each setting. The blower and heater work OK, but whatever setting is used incl. 'off', it always blows out onto your feet only. Nothing will come through the windscreen vents but will come through the interior heat vents OK.

Anybody got a clue where I can begin to trace what's wrong with it?

 

sounds like the control cable has popped off, have look under the dash by the pedals? and get someone to turn the knob, see if you can see the cable?

 

Cheers.... I hope it's such a simple solution as that. Will get that checked out later

 

If you haven't fixed it by now drop me a PM I know these cars inside out

 

I won't be able to check it until tonight... Andy is working today, but I'll definitely PM you if it's not the cable. Thanks