Refrigerators are a major energy hog in your home. The average, well-running refrigerator uses about 725 kilowatts per hour (kWh) to operate. By opening the door while loading groceries or looking for a snack, you could be wasting up to 7% of this energy by letting the cooled air escape. When the cooled air escapes, the refrigerator’s compressor needs to replenish it. This means that your refrigerator needs to run longer than it normally would to pump more cooled air in. Leaving your door open wastes 50 to 120 kWh each year. That amount of energy would let you wash your clothes once a week for a year.
This is not only costing you more energy and money, but it’s taxing on your refrigerator. The compressor is the most expensive part of a refrigerator to replace. They can cost anywhere between $85 and $250 for the part