Cummins Marine Diesel Repower Specialists › Forums › Cummins Marine Engines › Grid Heater

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  • July 21, 2022 at 12:55 pm #134529

    kitepilot340
    Participant

    Cummins 6bta m3  Alternator failed so new one installed and voltage was erratic and while cruising after full warm up the green pre heat light would flash and voltage would drop so I’m guessing a temp sensor or solenoid is bad! I would love to by pass the system but when I pulled the fuse  the green light pre heat stays on all the time Any thoughts? I’ve read all I can find but no mention of the light on all the time    

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  • August 2, 2022 at 5:14 am #134927

    Rob Schepis
    Forum Moderator
    Vessel Name: Tenacious
    Engines: 6BTA 5.9 330's - "Seaboard Style"
    Location: Long Island, NY
    Country: USA

    Engine Fuses — 6BTA-M3

    See attached

    July 31, 2022 at 8:13 am #134850

    kitepilot340
    Participant

    I see that the key also has a 10 amp fuse

    Can you tell me we’re to look for the fuse that comes off the ignition switch 

    I’ve already pulled the ecm fuse on the engine block but looking for the otherGROUND

    July 31, 2022 at 5:48 am #134848

    Rob Schepis
    Forum Moderator
    Vessel Name: Tenacious
    Engines: 6BTA 5.9 330's - "Seaboard Style"
    Location: Long Island, NY
    Country: USA

    Bayliner?  Not sure where exactly they are wiring in that light. One of the mag switches? As Tony said, pull the system. Keep us posted on where you end up. 

    July 31, 2022 at 3:16 am #134846

    Tony Athens
    Moderator
    Vessel Name: Local Banks
    Engines: QSB 6.7 550 HP
    Location: Oxnard, CA
    Country: USA

    Why not just remove the grid heater?  Very problematic.

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