GE 20 Owner's Manual And Installation Instructions page 4

About the controls with temperature settings.
NOTE: The refrigerator is shipped with protective film covering the digital temperature controls. If this film was not
removed during installation, remove it now.
Initially, set the refrigerator control at 5 and the freezer control at 5. Allow 24 hours for the temperature
to stabilize. Several adjustments may be required. Adjust the controls one increment at a time, and allow
24 hours after each adjustment for the refrigerator to reach the temperature you have set.
Setting either or both controls to 0 for digital and 0 for the refrigerator control knob stops cooling in both
the refrigerator and freezer compartments, but does not shut off electrical power to the refrigerator.
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(on some models)
(on some models)
(on some models)