1. Check the thermostat When you’re removing and replacing items in and out of your refrigerator, it’s easy to nudge the thermostat setting. While reducing the temperature won’t cause much ...

Periodically check the thermostat to ensure it stays below 40 degrees. Test the Gaskets The gaskets around the refrigerator’s door help keep the cool air inside the appliance.

Thermostat Control This test evaluates a fridge’s ability to reach a set temperature and how well it maintains the desired temperatures in the fresh-food and freezer compartments.