hello , easy solved repair kit available diy repair
tel this guy for advice - fully trained samsung engineer
07407 734 204 .. sells spares - can post overnight etc using paypal.
easy fix took us just over 1 hour , basicaly involves changing big white panel that sits inside fridge compartment , you can tell if it need changed as there will be ice on vents and fridge will probally have noise which stops when door opened ..
hope this helps ...
ps samsung tech wont mind you calling as he makes something of the spares ???
lorna, October 2011