I would like to share with you my story with YS-D2 Strobe , i have this Strobe form one and half years light used , it was so perfect with me , last time when i was diving i have a problem the strobe level control come out of control it was firing only in full power even when i adjust the control level to low power , at home i change cable and mode but still same problem ( only firing full power ) .
i send email for Sea&Sea Company to tell them my issue if they can repair the strobe but until today i did not get any response from them , and i send email for the shop i buy it from he tell me the Strobe not under warranty any more , and cost for repairing this problem will be close to for the new one cost , he recommended to me buy new one.
i come depressed after his email, for last chance i take the strobe for local camera shop in my country the technician say he need few days to check the strobe after 5 days they call to tell me they need to change small electronic part and interior O-ring the cost will be ( 40 $ ) .
after repairing i check it at home was working very well and use it now in more than 15 dives it's working perfect
Strobe before repairing
Strobe after repairing