If you run into the problem that neither side is cooling there is a couple of tips you can try before scheduling an appointment for service. The first step is to check there is power coming to the fridge. Open the doors and check that the inside lights are working and if your fridge is equipped with a dispenser, check that the dispenser is lit up and showing a display. If not, unplug the fridge completely for a couple of minutes to allow the main board to reset itself. If you have recently had a power surge, this can help. Like any other electronic device, sometimes it needs to reboot to remove any errors than has occurred. If power doesn’t come back, the main board most likely needs to be replaced at an estimated cost of $250-$400. If your unit has power but doesn’t cool, open the freezer and check if there is excessive amount of condensation or ice built up underneath the drawer. If so, please make sure the door and seal are closely tightly to the cabinet to prevent moisture from entering the freezer. This excess of frost or ice buildup can prevent the freezer fan from circulating properly and stop cold air from being produced. Most times, the freezer needs to be defrosted to remove the ice by simply unplugging it for 6-8 hrs. Please place a towel underneath the fridge as there will be a good amount of water that will defrost and will prevent your floors from getting ruined