Heater problem 06 Megane CC

[davestroud]

Hi all - this is my first post.
We bought an 06 Megane CC during the summer and love it, all has been fine not requiring the heater until the weather turned cooler. We didn't notice a problem before.
When the heater is running, suitably warm air comes from the vents on the dash but 'freezing' cold air is blown out of the footwell. My upper half is toasting while my legs turn blue!
I originaly thought that there could be a draught from outside, but think otherwise now as it seems to decrease as the heater blower is turned down. It's really blows a gale in the footwell.
Is there a valve assembly which splits air to all outlets?
Any help please.
Dave.

[morganjake1544]

Here's the appropriate technical manual.

http://ray-lee.co.uk/megane/dialogys/MR366MEGANE6.pdf

Check page 126 onwards, it may shed some light on problem.