vRS ventilated seats - faulty or normal?!?

I picked up our brand new vRS on Saturday. I specifically specced it with the 'suite' leather so I could get ventilated front seats.

However, first time using the seats yesterday in the heat, and I'm not even sure they work, as I can't feel any cold air... 😕

I come from a Discovery 5 with ventilated seats, and even on the lowest setting I could feel the cold/AC air through the perforations. But with the Kodiaq, I can't feel anything, even when they are on 3. Is this normal (are they really that weak), or am I doing something stupid where they only work in a specific setting?!?

🤔