Vt berlina v8 wagon climate control issues

[drgt74]

My vt berlina v8 wagon climate control system heater tap is always open.has vaccuum from manifold to check valve,all vent controls work,just had replacement compressor and regas and ac is ok but only with heater tap cable tied closed?if i cut cable tie and its open heater is great but will not close when cold temp selected as no vaccuum to it?so ac wont work?weird.heater tap opens and closes when i suck on vaccuum line so pretty sure its mechanically ok?no leaks and looks new
What else could it be?vaccuum solenoid,leak in vac resevoir? Coolant level fine no overheating thermostat ok? All vac lines are ok in engine bay?
Also when i got the car heater tap was cable tied closed.didn't notice as was summer and never tried it?so im guessin was tied for a reason?
Same reason im trying to solve now Now its my problem i guess lol
Got me?any help info appreciated
Also there is an x symbol on climate control screen?
Ambient temp sensor issue? Cheers

 

[VTS5]

Sounds like hot/cold dial and/or the rod needs replacing..

 

[drgt74]

Hey cheers
Does the climate control system have the rods as such to adjust hot/cold?
Or is it all elec/vaccuum operated from the climate unit?
No dials as such just buttons
Read about similar symptoms on vr/vs being the rod that activates the vaccuum to heater tap but not sure if vt climate control the same? Cheers for the reply mate