Customer Questions and Answers for Refrigerator Defrost Thermostat by Samsung

Hi Larry. You will need to open the freezer door to see if the fan is operating. If not then I recommend that you disassemble the back cover and see if the connection to the fan is OK. Use a volt/ohm meter to check the wires going to the fan and make sure that under normal run time the fan is getting the 120 vac from the main control board. If not check the main board connections and make sure they aer clean and tight as well. if you are not getting the 120 vac from the board, it is part # DA41-00219C. Static ground yourself to bare metal frame a few times to get rid of the static so you do not induce it into the new board and touch the new one by the corners only. If the fan is not running and the back wall is not frozen, use the replacement kit part # DA97-01948A. If it is, then you will also need the outer cover w/ inner Styrofoam and seals that will break when removed. It comes with a sensor kit as well. Are the condenser coils clean? Use a condenser coil brush and a shop vac to clean them, this will start a no-cool as well as the cond. fan not running as well. Condenser coil brush part # TJ103. Make sure all door seals are sealing properly as well as the lights shutting off when the doors are shut. Thank You.