If your refrigerator is new, it may have a high-efficiency compressor that optimizes energy and better regulates temperatures to match cooling demand. You may notice that it operates differently than your previously owned refrigerator. It is usual for the high-efficiency compressor to run for extended periods at varying speeds to consume only the energy necessary for optimum efficiency.
Check the refrigerator’s installation: Most refrigerators are designed to be used in a location where the temperature ranges from a minimum of 55°F (13°C) to a maximum of 110°F (43°C). They should not be installed near a heat source like an oven or radiator. A location that is too hot or too cold could cause the refrigerator motor to work too hard. Also, make sure there’s enough room around the refrigerator for proper ventilation, according to your owner’s manual.
Keep the doors closed as much as possible: Opening doors too much or leaving them open for long periods of time will cause the temperatures inside to rise, making the motor work overtime to drop the temperature down again. Pay attention to how often the doors are open. Also, check the door seal to ensure it makes full contact with the refrigerator. If not, try wiping it down to remove any debris or obstructions.
Set the controls correctly: Temperature controls are typically preset at the factory to the "mid setting," which should be correct for regular household use. The controls are set correctly when beverages are as cold as you would like. Setting the controls too low can cause the refrigerator to run longer than it needs to. Learn more about how to get the correct temperature settings.