What are the proper temperature settings and what is the factory default?

The factory default setting for both the freezer and fresh food compartments is 6 on a scale of 1 (warmest) to 9 (coldest). The factory setting corresponds to approximately 0°F (-18°C) for the freezer and 37°F (3°C) for the fresh food compartment. When changing control settings, wait 24 hours for the temperature to stabilize before making additional changes. (Page 14)