washing machine error code NF1

This is a no fill error. The first thing you will want to do is disconnect the hot and cold fill hoses and run them into a bucket. Make sure your water pressure is good coming out of both hoses. If the water pressure is very low then remove the hoses completely and check to see if the screens are plugged. Also make sure that that hot and cold fill hoses are not reversed (e.g. hot water going into the cold side of the valve). If all this checks ok then you will likely have a bad fill valve. Listen to the valve if the central control board is powering the valve you will hear it humming and you can usually feel a slight vibration when its trying to call for water. Hope this helps.