During this summer i went to a call saying that the line was freezing up, i of coarse went thinking it must be the suction line. NOPE it was the liquid line. it was fairly obvious problem though on the account of it was freezing on the out let of the filter drier, i believe the unit was a Goodman and had the spun type of filter drier inside the condensing unit factory installed. any way cut it out replaced with an 083. system worked perfect. its my first year doing this so i thought it was probably a rare thing to happen.