Solutions for the NF1 Code on a Samsung Washer

The NF1 fault code indicates a reversed connection of hot and cold water inlet hoses. This happens due to failure to distinguish between hot- and cold water supply pipes during installation. Check the inlet hoses to ensure they are connected in the right order. If not, swap them. It is advisable to call the installer team and ask them to reverse the connections. When it is done, the error code will disappear.