Hello there and Welcome to our Samsung Community. We absolutely do not like hearing about your temperature control issue and would love to assist. First, we recommend for you to please make sure Cooling off (demo mode) is not enabled. When the Cooling-Off mode is on, the panel will display "OF OF" or "O FF."
We also suggest checking to ensure the panel is not locked by pressing and holding the Child Lock for 3 secs to activate/deactivate. Lastly, you have the option to Power Cycle the refrigerator by unplugging the refrigerator or turning power off at the circuit breaker for 60 seconds, then restoring power.
Please let me know if any of the above recommendations help by selecting any moderator and clicking on the chat option with your full model and serial number, I would love to assist you further with this issue, if possible there.
