Samsung uses a small fan motor on the back of their refrigerators. This small fan motor is called a condenser fan motor. It serves several purposes but one major purpose. If you have recently opened the freezer or refrigerator door and noticed the center strip running up the middle of the two is hot to the touch you have a issue.
When a condenser becomes so clogged with lint and dust or if the fan motor fails you will notice that the center mullion will be hot. If you have noticed this then you need to check a few things. The first thing to check would be the condenser coils. The condenser coils are located either under the refrigerator or on the back by the compressor. If the coils have a layer of dust and lint built up on it then it needs cleaned. Since the coils are where the heat transfer for the refrigeration system happen they coils need to be clean.
If you find the coils clean then most likely the fan motor is bad or something is stuck in the blade stopping it from turning. When the fan fails or a small object stops the motor from turning all the heat from the refrigeration system and the compressor goes right up into the the machine which in turn is felt on the front of the refrigerator.
If the compressor is running the fan next to it should be as well. Most of these new Samsung refrigerators use a small plastic motor that often fails. If you are fairly handy you can make this repair yourself.
The second thing the fan motor does is to help evaporate the water from the defrost drain pan which is located down by the compressor.
After reading this article you still find yourself asking questions about this issue please post your question in the forum and one of our Factory trained technicians would be more then happy to help.