Service Tech for Onboard Battery Charger

Discussion in 'Gulf Coast' started by Gator, Oct 18, 2022.

  1. Gator

    Gator New Member

    14
    Feb 23, 2021
    2003 Sundancer 380
    Mercruiser Horizon 8.1S V Drives
    I have a 2003 Sea Ray Sundancer 380 located at Ft Walton Yacht Club and looking for someone to troubleshoot my ProMariner ProTech 1240I Plus battery charger. Not charging any of the batteries from shore power or generator. I looked for fuses but couldn't locate any. The lights on the Protech onboard charger only come on when I hook up a battery charger straight to the batteries. I have Eagle Extended service protection so it would help if they did warranty work.

    Thanks,

    Keith
     
  2. Lazy Daze

    Lazy Daze Well-Known Member TECHNICAL Contributor GOLD Sponsor

    Apr 21, 2009
    PA
    Various
    Various
    That sounds more like a wiring issue than a problem with the charger. You said "only working when connected directly to the batteries". The assumption is then that the charging wires "were" connected through the battery switches? In which case, maybe someone wired them to the wrong post - they should be wired to the supply post otherwise they would only work when the specific selection is made on the switch.

    If this isn't the case, please clarify.
     
  3. Gator

    Gator New Member

    14
    Feb 23, 2021
    2003 Sundancer 380
    Mercruiser Horizon 8.1S V Drives
    I stated that wrong. The onboard battery charger is always hooked up to the batteries. The lights on the onboard battery charger (ProTech 1240i) would not illuminate or charge the batteries from shore power or generator. Nothing on the onboard charger (ProTech 1240i) were ever disconnected. When I hooked up a portable battery charger (EverStart Maxx) the lights on the onboard charger (ProTech 1240i) lit up. I think if was just feeding back into the onboard charger from the portable charger.
     
  4. Lazy Daze

    Lazy Daze Well-Known Member TECHNICAL Contributor GOLD Sponsor

    Apr 21, 2009
    PA
    Various
    Various
    OK, got it. Other than checking breakers/fuses to make sure you have good power coming into it and going out of it, I'm not sure. You may want to call Pro Mariner - they've been very good (from my experiences) with helping figure things out like this. They may be able to direct you to an authorized repair service, as well (or send it to them if your warranty covers it). You'll probably have to do the removal, though.
     
  5. techmitch

    techmitch Well-Known Member PLATINUM Sponsor

    May 1, 2008
    Chesapeake Bay, Middle River/Frog Mortar Creek MD.
    1999 270 DA
    Twin 4.3s W/Alpa I Gen II's
    Are you sure all of your batteries are good?
     
  6. Gator

    Gator New Member

    14
    Feb 23, 2021
    2003 Sundancer 380
    Mercruiser Horizon 8.1S V Drives
    Thanks Lazy Dave. Yes 2 bought last year and 2 bought this year. I was able to charge them up with the portable charger.
     
  7. Stee6043

    Stee6043 Well-Known Member GOLD Sponsor

    Jun 1, 2015
    West Michigan
    1997 Sundancer 400
    7.4L Gassers
    Silly question...do you have the "AC Convertor" breaker turned on in your main breaker panel?
     
  8. Gator

    Gator New Member

    14
    Feb 23, 2021
    2003 Sundancer 380
    Mercruiser Horizon 8.1S V Drives
    Yes I do. I've looked everywhere for fuses but hadn't found any.
     
  9. Stee6043

    Stee6043 Well-Known Member GOLD Sponsor

    Jun 1, 2015
    West Michigan
    1997 Sundancer 400
    7.4L Gassers
    I don't think you're going to find any "fuses" on the AC side. It's going to be the breaker in your main panel (AC converter). Pop the bottom or top off the charger and you should be able to easily check for AC coming into the charger.

    The 1240I is not a newer ProMariner as far as I can tell. It might be that your charger has given up the ghost...perhaps time for a 1240P.
     
  10. Gator

    Gator New Member

    14
    Feb 23, 2021
    2003 Sundancer 380
    Mercruiser Horizon 8.1S V Drives
    Thanks, i appreciate the info!
     
  11. ttmott

    ttmott PhD in OCD TECHNICAL Contributor GOLD Sponsor

    Apr 3, 2012
    Space Coast Florida
    2006 52 Sedan Bridge
    Cummins QSM11
    Sea Ray typically installed a circuit breaker for each charger/converter leg to the batteries. It would be odd, however, that all of them tripped. On the 400DA those circuit breakers were behind the main DC disconnect panel in the back of the cockpit. The panel actually had to be unscrewed and pulled out to get to the breakers. Here is a pic from my old 400DA
    IMG_3613.JPG
     

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