AC works on generator, not on shore power. NOT a searay

Discussion in 'General Maintenance/Repair Questions' started by daddyox, Aug 4, 2019.

  1. daddyox

    daddyox Member

    215
    Apr 1, 2007
    Connecticut River
    Sundancer 320 2004
    260 5.0 B III's
    I thought I would pick the brains of the expertise on this board.
    My slip neighbor has a 2004 Chris Craft 33 with a westerbeke generator. The AC stopped working on shore power but works with generator. Just came out of nowhere. He has two 30 amp cords one dedicated to power, other to AC. Switched outlets,switched cords, switched breakers (two breakers for we believe shore power and ac)...no changes. No matter what...same result. Could there be a bad transfer switch somewhere? Any other ideas? Power panel appears to show no Air conditioner shore power. Manuals are lacking.
     
  2. PlayDate

    PlayDate Well-Known Member

    Dec 25, 2006
    Washington DC
    1994 370 Express Cruiser
    454 Mercruisers
    It would seem that the AC shore power connector on the boat has a problem.

    If you have swapped the shore lines at the boat or the pedestal and the rest of the panel lights up regardless of which shore line is plugged in....then the boat receptacle would be the first place I would look.

    If the receptacle is not close to the electrical panel, there might be a hidden breaker near the receptacle if it is located more than 10 feet from the electrical panel.
     
  3. daddyox

    daddyox Member

    215
    Apr 1, 2007
    Connecticut River
    Sundancer 320 2004
    260 5.0 B III's
    That's possible. No other breaker though, at least that we can find. Connection is very clean. Ever see the power connector just fail?
     
  4. MonacoMike

    MonacoMike Well-Known Member

    Sep 15, 2009
    Indiana lakes and Lake Michigan
    2000 Cruisers 3870
    8.2 Mercs
    85 Sea Ray Monaco 197
    260hp Alpha 1
    On my Crusiers with 2 30A into the boat there is a 30a breaker/reset, one for each leg, four total, in the locker where the cords connect to the boat. If one trips the panel still lights up but will not power AC. The reverse polarity warning lights up.

    If this is switched to generator it would run as the breakers described above are shore power only.

    You have an issue either at the pedestal, the cords, wiring from the shore power connections to the panel.

    MM
     
  5. daddyox

    daddyox Member

    215
    Apr 1, 2007
    Connecticut River
    Sundancer 320 2004
    260 5.0 B III's
    Guys...after hours found a switch under the sweet that had been switched off. Problem solved. Feel stupid but it's fixed!
     
    Jeff42899 likes this.

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