PAYNE PH13NR036 & 048 COND COILS?

Anyone no of problems with leaks in cond coils of the Ph13N036 & 048 . I have dark discolorations running vertically on outside of coils surface. Have small leak in system and can not find in any other components. Picking up small (very) trace of refrigerant inside of cond cabinet. Can not pinpoint. Any help?

Don't make duplicate post.

Already deleted the one you made in general forum.

Have you talked to your distributor.

Sorry, newby. Didn't realize it would post in both places. Learning

You know they don't have problems like this. Thanks.