Chosen Solution
I have a Samsung Fridge/Freezer, model# RF266AFRS/XAC. The freezer won’t freeze anything - it’s warm but the digital readout says it’s -20. Any suggestions?
@zoomyb see if this works for your refrigerator. 2) Self-diagnostic function during normal operation TROUBLESHOOTING 4-1-3. Self-diagnostic function 1-1) Micom operates self-diagnostic function to check the temperature sensor condition within 1 second when the refrigerator turned On initially. 1-2) If bad sensor is detected by the self-diagnostic function, the applicable display LED will blink for 0.5 sec. At this moment, there is no beep sound.(Refer to self-diagnostic CHECK LIST) 1-3) Self-diagnostic button is recognized only when the error is displayed by the bad sensor. Display does not operate normally but temperature control will be controlled by the emergency operation. 1-4) When the error is detected by self-diagnosis, the error can be canceled automatically if all troubled sensors are corrected or Self-diagnostic function key (Energy Saver Key + Alarm/Lighting Key ) are pressed simultaneously for 8 seconds. (Return to normal display mode) 2-1) If Energy Saver Key + Alarm/Lighting Key are pressed simultaneously for 6 seconds during normal operation, the temperature setting display will operate for 2 seconds (ON/OFF 0.5sec each). If Energy Saver Key + Alarm/Lighting Key are pressed simultaneously for 8 seconds (including above 2 seconds), self-diagnostic function will be selected. 2-2) At this moment, self-diagnostic function will be returned with buzzer sound ‘ding-dong’. If there is an error, display of error will be operated for 30 seconds and then return to normal condition whether problem is corrected or not. (Refer to self-diagnosis CHECK LIST) 2-3) Input by button is not accepted during self-diagnostic function. If these steps work for yours, see if it gives you an error. I would expect an F-sensor error which would be the Freezer temperature sensor.
This should be showing you where the sensor connects to on the PCB
Here is the troubleshooting section from the SM for the RF265_RF266 Samsung Rf265 Rf266 4
