The aircon on my 40th Anniv was non-operational, had it regassed at our local tyre services place including a leak check, removed 300ish g of gas so was obviously low then regassed with recommended amount of gas/oil. All seemed to be working fine for several days but now non-operatonal again. After speaking with them, it appears the leak test is done on a vaccuum so I assume that this might well hide a leaks which would then appear when the system is running as normal under pressure. Have checked obvious places at front rads but no obvious signs of oil etc. Anyone have any comments or other hints to try or can recommend an aircon specialist in Newcastle upon Tyne area. Here's hoping for some warm weather so i might actually need the aircon!