If he put the dye to detect the escape with the ultraviolet light lamp, if not at all, nothing is that the escape is not, in those models it is communicated that the seal or retains the follow of the compressor in order to detect it will have to remove the clutch from the compress in another way that he has X -ray view. Another probable and common leak in that model is the evaporator the fastest way to review it would be the light lamp due to the evaporator drainage
type
of packaging or compressor stamps is very simple for any average technic Does something suppose you should give you any guarantee or not ??? Now in this market there are technical mechanics in A/C excellent, good, regular, bad and we weigh you had a bad experience, try another but always ask that guarantee has the work done that is what slice credibility to a workshop .... greetings and lucky