Firstly I apologise for digging up an old thread, but it's the most appropriate place to post this.
It's now just over a year since I had my air con recharged by the local dealer and I have made sure that I use it on occasions to maintain the charge, but when I used it on one of our recent very hot days it doesn't feel very cold and definitely not as cold as air con should be.
They claimed to have pressure tested it before it was recharged, so would air con run out of gas so soon? How/where else can I get it checked?