Robert for Model Number RF28HFEDBSR/AA-0000 The refrigerator will cool down to 34°F. As you open and close the doors the temperature rises inside the refrigerator, But the display temperature is still 34°F end it will not cool back down to 34°F. If I turn off the refrigerator for 10 seconds and turn back on then the temperature will display properly example 45°F and will cool back down to 34°F. it requires to be turned off and turned back on to get the inside cooling to work can this be the control board or the power inverter? The temperature sensors and the fan inside the refrigerator cabinet have been changed but the problem is still the same. The freezer section also warms and will not cool unless the refrigerator is turned off and turned back on. I also had Samsung do the one time change on the icemaker and the icemaker control board so everything is new except for the power inverter and the control board.
Answer Hello Robert, if the inverter board failed the compressor would not be able to run and there would be no cooling at all. If the control board does not recognize a temperature difference and start cooling down within a few minutes and cycling the power to the ref which resets the control board corrects it then likely the main board is failing,it is part DA94-02679B. Read More... Answered by AppliancePartsPros.com | Friday, September 16, 2022