Hi all
Last week I had a back bar unit, returned back to the workshop, with a gas leak ( or should I say without an ounce of refrigerant in it), one of our sub-contractors had been out to the unit and changed the evaporator, which was fair enough. The day later he had to go back to the unit and top it up, then it came back to us. It took me five minutes with a bottle ofn to hear a hiss in one of the condensor coils and I mean it wasn't even a misable leak.

Neil