I think my climate control blower is not turning off. I would normally not notice it as i dont use the heater but as its been colder lately ive had it on 25C to heat the windscreen at the start of the journey (always on econ) then after a while I turn it off but warm air still comes out the vents. I turned it to the coldest and then turned it off and then cold air comes out the vents, more so if i had pressed the button with the arrow pointing at the driver.

So is their supposed to be air blowing out the vents all the time?

Yes I think there is but at very low speed

Leave it set to auto, you shouldnt need to turn it off. Set to auto, as long as the outside temp is above 4c then the screen will clear in seconds because aircon isnt just for cooling.

Turn the climatronic to OFF when parked and see if any air comes out. That will hopefully prove the blower motor is going off as instructed.