I spent a lot of time online (YouTube) until I figured out what the code was (LF means Long or Slow Fill) so I figured out it wasn't the hoses, but the fill valve was stuck. I ordered a new one. It arrived really quickly, well packed and installed easily. $80 for a part and a little time doing research verses $300-400 to call someone in and have them do the same thing. I highly recommend these folks for parts.