Hi Ant, the WSR57R18DM does have and acceptable range, here is info from the Use & Care Guide: Your refrigerator operates most efficiently when located in an area where the temperature will not fall below 40°F (5°C). Place your refrigerator in a location where the temperature will not fall below this recommended temperature. Thanks for your interest in Whirlpool!
8 years, 8 months ago
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WhirlpoolTeam