Samsung Refrigerator Error Codes Samsung Refrigerator Fast Track Troubleshooting: Hold buttons – Freezer, Fridge and Flex Zone for 6 seconds. All on/off LED’s will blink, Stop pressing to view load status. Refer to next. Samsung Refrigerator Display Samsung Refrigerator Load Mode Part DISPLAY LED Description R-FAN HIGHEST "a" and "b" at the lowest order digit of the R compartment In the case of the R-FAN HIGHEST operation, the corresponding LED is turned on. R-FAN HIGH "a" at the lowest order digit of the R compartment In the case of the R-FAN HIGH operation, the corresponding LED is turned on. R-FAN LOW "b" at the lowest order digit of the R compartment In the case of the R-FAN LOW operation, the corresponding LED is turned on. Overload "e" at the lowest order digit of the R compartment If the external air temperature is 34℃ or higher, the corresponding LED is turned on. Low Temperature "f" at the lowest order digit of th