LOL. When the Euro is set to fan ON - the aircon is actually working!
You have to press the AC button so that it displays AC OFF. Unless the display shows that the AC is OFF like this then it is actually working and you are using about 0.6 to 1L/100 km of fuel.
So its no surprise that it feels as cold. When you have the AC OFF - you'll see that the air is quite a bit warmer and more humid :)