My name is Peter. I am a retired field service refrigeration technician.
The error code is either a bad freezer fan, which is more likely, or a bad control board.
Motor Part Substitution: 4681JB1027C Cost: $55.00
Part #: EBR41956418 Cost: $125.00
There is a reset button on the board located in the back of your unit. GROUND YOURSELF BY TOUCHING SOMETHING THAT IS BARE METAL. STATIC ELECTRICITY WILL KNOCK OUT A CONTROL BOARD. Push the reset button only once. Open the refrigerator door while holding the light switch button in. Hear the fan?
Go into the following website, put in your model number and select parts. Parts and diagrams will appear.
Water Filters Lawn Garden Appliance Parts
You can purchase the parts for allot less over the internet.
If you call a service company, they will double the cost of the part and probably charge you $250.00 or more for labor. The labor cost for a bottom freezer is allot higher than a side x side or top freezer because of the difficulty to access the freezer components.
Bottom freezers and units with the ice maker or ice bucket on the door are the worst.
On my daily service calls, 65% were for either Samsung or LG.
Next time stay away from these and the above.