Quote Originally Posted by wixer View Post
Now back to fix the Air-Con, as it has stopped getting cold, again..... I suspect the evaporator matrix in the main HEVAC unit.... At least I had a months worth of cold air comfort.....
Sounds like a bigger leak. You've mentioned that it hold pressure after changing valves etc. Have you ever changed all (accessible) o-rings? If not you'll be faced with a long-running problem with your A/C system.