this link will help.
http://www.howtomendit.com/answers.php?id=47453
Billy
September 2008
These fridge freezers have had major fault highlighted on watchdog. Phone samsung and tell them you have the freezer featured on watchdog & they extend the warranty to 5 years if it has anything to do with the known problems. I've had to do it with mine.
C.Barkley
June 2008
samsung-engineer@hotmail.com
jon
April 2008
I can answer this question...
my Samsung RS21FCNS not reaching freeze temperature?