you probaly have the usual rs21 problem .. starts with water problem - but will lead to fridge temp problems .. trouble you have is water bottle situated in fridge is starting to freeze rather than chill ? ..
this is the early signs of further trouble ...
check out this ebay item
Item number: 280596204942 this is a rs21 repair kit which solves 2-3 common problems with rs21 fridge freezers..
this guy also has a youtube channel where he offers further help- advice
http://www.youtube.com/user/SamsungFridgeFreezer
calum, January 2011
