How long should I wait before using my new refrigerator after installation?
You should allow 24 hours following installation for the refrigerator to cool completely before adding food. It is best to wait 24 hours before putting food into the refrigerator to prevent food spoilage. Adjusting the temperature controls to the coldest setting will not cool either compartment more quickly.
From the official Whirlpool Refrigerator (Owners-Manual-231621) manual, page 9
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