Hey don't blame me, I thought it was a related question <_< With little knowledge of how A/C systems work i'd guess i've got an air bubble or something but being a gas system that wouldn't be possible would it? Anyway you can get a dye to check for any possible gas leaks, also they advise you use the system at least once a week (or was it once a month) to make sure the seals don't crack and leak. mate .. all good .. just a laugh ... The guy at the service said they would use a dye first to check for leaks .. if they ant find it they will just re gas and see what happens ... here is another question ... if there is a gas leak ... can it explode ????