Engine Warming up but no heat in Climate Control

[zmrjason]

Hi Guys,

Need some help!
My company runabour is a VW Passat 2.0Ltr petrol....
For some strange reason my heating has stopped chucking out any heat! The engine warms up in the normal time but absolutely no heat comes out of the Climate Control. Sometimes after about 15 mins some heat does come out.

Is there a valve that is prone to sticking or anything that could put this right? The car has done 60,000 miles.

Any help/guidance would be greatly appreciated!!

Thanks in advance!
Jason