Mercury Optimax issue – low voltage alarm sounding when engine is off???

  • Brian Klawitter
    Keymaster
    Minnesota/Wisconsin Mississippi River
    Posts: 59992
    July 6, 2016 at 9:44 am #1627668

    I think Bob is looking for some help here.

    Brian Klawitter
    Keymaster
    Minnesota/Wisconsin Mississippi River
    Posts: 59992
    July 6, 2016 at 9:49 am #1627669

    I think there’s 3 sensors on that motor. If you disconnect one at a time it will narrow it down to one… although there is a possibility of a worn wire grounding out and setting off the alarm.

    If you aren’t good at trouble shooting or are uncomfortable with it, I would suggest a certified mechanic look at it.

    (I don’t know who you are or what your background is)

    steve-fellegy
    Resides on the North Shores of Mille Lacs--guiding on Farm Island these days
    Posts: 1294
    July 6, 2016 at 5:46 pm #1627776
    Bob Lincoln wrote:

    Thanks, will try that.

    Must be or surely could be a bad ignition /key switch since there, I would think, should be ZERO voltage to the engine with the key shut off–right?? If need be, I have a Merc tech that you could call and get an honest answer to the potential issue that could cause this. Let me know….

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