Sub-Zero Cove Wolf My Hitachi fridge model no R-M700GMS (GBK) shows a error code of FO 13. What does it mean? How to fix a freezer that's not working? Modern appliances are more complicated than ever. Few people keep electronic testing equipment around the house. And a malfunctioning freezer can be a significant inconvenience for a family that relies on packaged food. Knowing how to keep food cold when fridge is broken can preserve your wallet as well as your food supply. Whether you need a rapid repair or the best refrigerated trailer rentals Sacramento, call Lake Appliance Repair for fast and professional service! Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. It only takes a minute to sign up. Your unit’s defrost drain can be blocked by food particles or other debris, and is typically accessible from inside your freezer. You can try to flush the drain from inside the freezer using warm water, though you may need to remove debris manually. Locate the defrost drain hose on the back of your refrigerator, and clean it with hot water and soap to remove any clogged debris.