Refrigerator and freezer Set the refrigerator to 38-40 degrees F. Place a thermometer near the thermostat to check setting. Set stand-alone freezers to 0 degrees F. Unplug the second refrigerator or freezer if you don't keep it full. Locate refrigerators and freezers away from heat registers and stoves, if possible. Leave two to three inches clearance around the back, sides and top. Vacuum coils behind or underneath refrigerator twice a year.
Clean coils help the compressor run less and last longer.
Repair damaged door gaskets with self-stick foam tape. Keep the door closed. Open the door once to unload several items, instead of opening the door several times in a row. Lights Turn off lights when you don't need them. Install lower wattage bulbs in overhead fixtures.