If the unit has one compartment that is not cooling at all, but the other compartment is working correctly, perform the following:
Make sure that the unit is leveled. A properly leveled unit can prevent potential cooling issues, noises, or leaks, your refrigerator needs to be level. This link below will show you how to level your fridge and make minor leveling adjustments
If the unit does not appear to have any power at all (the control panel is also blank and none of the lights come on when the door is opened), this is a different issue and needs to be brought up in its own thread.
If the unit display indicates O FF, OF OF, or has scrolling temperature bars (depending on the model), the unit is in Cooling Off Mode. I can provide steps for getting the unit out of this mode if needed.
If the refrigerator is not in Cooling Off mode, has power, and is still not cooling at all, unplug the refrigerator (or flip the circuit breaker) for 2 minutes, then plug it back in. If the refrigerator still does not cool, service is required.
If all of this has been completed then service repairs are what is needed. You may message us with the model code and serial number in order to verify the warranty term. http://bit.ly/33ipYnO
If the unit is more than 5 years old you are welcome to use the following link to seek local authorized repair centers and obtain pricing information: http://www.samsung.com/us/support/service/location