Smart craft alarm of lost comm

Discussion in 'Electronics Q&A' started by repetejon, Aug 12, 2020.

  1. repetejon

    repetejon New Member

    6
    Aug 5, 2014
    oklahoma
    05- 28 Sundancer
    496 single
    2005 280DA with smart craft. Keep getting the alarm of lost comm with tach and speed going to zero.Boat still runs with alarm going off constantly. Shut down and restart helps for awhile but alarm returns. Checked connection at engine and still get the alarm. Completely random as can go hours with no alarm and then get the alarm constantly.Have had the problem for years,but recently it has gotten to be a real issue. When the lost comm happens the engine surges down and back to normal.
    Any help appreciated.
     
  2. SR280SUN2005

    SR280SUN2005 New Member

    1
    Aug 24, 2020
    2005 Sea Ray 280 Sundancer
    4.3 Mercruiser w/ Bravo 2 drives
    I have exactly the same problem on my 2005 280DA except that engine eventually cuts off. The engine cut off could potentially be caused by the oil pressure alarm which sounds off even that nothing is wrong with the oil pressure (as measured by a mechanic). I just bought it and I am new to it. Appreciate any tips as mechanic has challenges troubleshooting and fixing the problem.
     

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