Sorry I don't how to reset your samsung but I recently had a buddy who has one of these peculiar units and he was having similar issues as you are... Of course he had no clue where the users manual disappeared to so I had him google samsung's website where he was able to print out a replacement manual and get the necessary procedures to get his fridge back in working order... I remember him saying he had to hold down two buttons at once for a certain period of time or something like that... Recommend you look for your users manual or dig in samsung's website for help... good luck, kooler