Samsung RS757LHQESR/ Series Service Manual page 42

FUNCTION OFR FAILURE DIAGNOSIS
3) If freezer compartment "4" is set as below freezer compartment code after fridge compartment "0" is set,
standard temperature of freezer compartment will be lower than -4℉(-2.0°C).
(Refer to the picture "changing the freezer compartment temperature")
: If you wait for 20 seconds after completing the setting, MICOM will save the setting value to the EEPROM and
normal display will be returned and the option setting mode will be canceled.
4) Option changing method as above is the same as all model.
5) By the same method as above, it is possible to control the fridge compartment temperature, water supply, ice-
maker harvest temperature/time, defrost return time etc.
6) Option function is set in the EEPROM at shipping process in the factory.
You would better not to change the option of your own.
Completing the setting is that option function return to normal display after 20 seconds.
Do not turn off the appliance before returning to the normal display mode.
41