Wartsila’s User Group › Forums › 34 SG Wartsila Engine › LDU-20 failure › Reply To: LDU-20 failure April 7, 2017 at 11:10 pm #1649 Houston Snyder IIParticipant If it helps, I believe there is a section in the Manual that states to try swapping Com Ports at the LDU first, before considering replacement.
