CO Detectors and Generator

Discussion in 'Sport Yachts/Yachts' started by 74Alfa, Aug 7, 2022.

  1. 74Alfa

    74Alfa Member

    193
    Jun 6, 2011
    Connecticut
    2000 Sea Ray 380
    Twin 454 Magnum MPI's
    Hi,

    I've been troubleshooting my generator in my 380 DA for a while now. Typical start and run until you let go of the "preheat (sensor bypass)" switch. All the sensors and K1/K2 relays check out.

    I had a specialist come out recently and he said that the CO detectors are wired to a relay that will shut down the generator if they activate. He recommended that I replace them. I don't see this in any of the wiring diagrams for the boat... did these come wired in this way? If so, we're the heck is this relay?

    Thanks.
     
  2. Chris-380

    Chris-380 Well-Known Member

    Jan 20, 2019
    Pontoon Beach IL
    2000 380 Sundancer
    7.4L Horizon w/V drives
    I have a 2000 380 DA, I think the interlock with the co detectors is on newer boats than ours

    when I was having the issue the same as yours, it ended up being the fuel pump going bad
     
  3. 74Alfa

    74Alfa Member

    193
    Jun 6, 2011
    Connecticut
    2000 Sea Ray 380
    Twin 454 Magnum MPI's
    Thanks. Mine is also a 2000.
     
  4. dtfeld

    dtfeld Water Contrails GOLD Sponsor

    Jun 5, 2016
    Milton, GA
    410 Sundancer
    2001
    12" Axiom and 9" Axiom+ MFD
    Cat 3126 V-Drives
    Fire Boy make an engine shut down module that will shut down all your gas engines. It may have been retrofitted.
     
    Last edited: Aug 8, 2022
  5. 74Alfa

    74Alfa Member

    193
    Jun 6, 2011
    Connecticut
    2000 Sea Ray 380
    Twin 454 Magnum MPI's
    Thanks. I'm guessing if it was, then it's behind the breaker panel. Easy enough to trace.
     
  6. dtfeld

    dtfeld Water Contrails GOLD Sponsor

    Jun 5, 2016
    Milton, GA
    410 Sundancer
    2001
    12" Axiom and 9" Axiom+ MFD
    Cat 3126 V-Drives
    I have a similar system, but actuates if there is a fire in the engine compartment. You might check on the firewall. Sea Ray might have installed in behind a large plastic cover where a bunch of other electrical equipment is installed.
     

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