GE GTS18TCSABB Owner's Manual And Installation Instructions page 5

About the controlson the refrigerator, gecom
Control Settings
Initially, set the refrigerator control at 5 and the freezer control at 5, and aflow 24 hours
for the temperature to stabilize.
Several adjustments may be required. Adjust the controls one increment at a time and
aflow 12hours after each adjustment for the refrigerator to reach the temperature you
have set.
Setting the refrigerator control to 0 stops cooling in both the freezer and refrigerator
compartments but does not shut off electrical power to the refrigerator. The freezer
control has no effect on electrical power to the refrigerator.
Control settings will vary based on personal preferences, usage and operating conditions,
and may require more than one adjustment. Factors that affect temperature include the
amount of food in the refrigerator or freezer, the frequency of door openings and the
temperature of food when it is placed in the refrigerator.