Range Rover weird heater problems

[Jammez]

Hi Folks

Any advice on this would be welcome.

I have a 2003 L322 HSE with the 4.4 petrol engine.

The heater a/c seems to be doing weird things. The blower works fine at all speeds but when adjusting the temperature controls on either side it doesn't really seem to do much.

If i drop the temp down with the a/c on to it's lowest setting it speeds up the blowers but continues to blow really hot. The only way I can get it to blow cold is by moving the blue/red control on the center vents. Moving it to blue will blow cold chilled air but you get no temp change when it's on red.

If I understand correctly the system is meant to maintain the temp you set it at but mine just wont, you constantly have to keep moving the blue/red wheel to maintain a constant temp.

I don't know if that makes any sense but any thoughts would be appreciated.

[OtherBusiness]

I tend to leave mine dead centre, neither red nor blue most of time. If I need it hot or cold when first getting in then I will adjust it then.