My Samsung RS20CCMS5 is not cooling. First I noticed fridge temp digit flashing. It stopped next moring. Later that day I noticed fridge is not cold and freezer things was tawing. Compressor is running without stop.
I empted fridge freezer and let run over night. There is frost building in lower part of freezer but temp is 3deg in freezer.

Paul, February 2011

This has happened many times to my freezer and I have defrosted it many times for the problem to re-occur. I am now going to replace the defrost sensor and see if that fixes the problem.

Alan, October 2012