Never Cold Runs on 12V not on Shore Power

Discussion in 'Sport Cruisers' started by WV 320 Dancer, Jun 11, 2019.

  1. WV 320 Dancer

    WV 320 Dancer Active Member SILVER Sponsor

    688
    Oct 28, 2018
    2003 Sea Ray Sundancer 320
    Twin 350 MAG - V Drive
    So I have been working this problem and we finally got to the place where we pulled the fridge from under the cabinet and confirmed we do in fact have 112V at the plug. The fridge in the cabin will run fine on 12V but will not fun on shore power. This never cold is original to the boat. So my question is does anyone have experience with a fix for this issue?
     
  2. Windjammer

    Windjammer Active Member SILVER Sponsor

    385
    Nov 10, 2007
    Marietta, GA
    340 Sundancer 2006
    8.1 Mercruiser V-Drives
    Had a similar issue with the cockpit frig last year, and it was a bad AC Power Board that was mounted on top of the unit. Can you get a pic of the unit (from the top)?
     
  3. RollerCoastr

    RollerCoastr Well-Known Member

    Nov 15, 2007
    Cedar Point, OH / Miami, FL / MacRay Harbor, MI
    1997 400DA
    340HP 7.4 Mercruiser Bluewaters
    Garmin 741, 742, 8212, 24HD, Intellian I2
    1999 280BR
    Twin 250HP Merc 350 Alpha Ones
    MY fix to DC opp but no AC opp would be:

    1. Place beer in fridge
    2. Plug boat into shore power
    3. Turn on converter/charger
    4. Remove beer from fridge
    5. Drink beer
     
  4. carterchapman

    carterchapman Well-Known Member TECHNICAL Contributor SILVER Sponsor

    Mar 25, 2008
    Lake Chickamauga/Marietta, GA/Ft. Myers, FL
    2006 Sea Ray 58 DB
    MAN CRM V8-900s, Twin Disc Drives; Onan 21.5 Generator
    That’s what mine did on my 410. A year later it died completely.
     
    WV 320 Dancer likes this.
  5. Bayou340

    Bayou340 Member

    34
    Feb 26, 2018
    340 Sundancer, 2000
    Mercruiser 7.4 MPI
    Have the same issue now. Fridge works on 12 v only. I pulled it from the cabinet and confirmed it is receiving both 12v and AC. My vintage has the large block style inverter attached to the back next to the compressor. The power supply on these go bad and the part isnt made anymore. At this point I am just riding it out till it dies completely.
     
    WV 320 Dancer and carterchapman like this.
  6. WV 320 Dancer

    WV 320 Dancer Active Member SILVER Sponsor

    688
    Oct 28, 2018
    2003 Sea Ray Sundancer 320
    Twin 350 MAG - V Drive
    Current SOP as of now... go down on Thursday night turn on the batteries, turn on fridge. Friday night bring cold beer from home add to now cold fridge. Remove beer pry open seal consume , repeat process
     
  7. Handsome Transom

    Handsome Transom Active Member GOLD Sponsor

    329
    Jan 26, 2018
    Penetanguishene Ontario Canada
    1989 SeaRay Sundancer 268 454 Bravo
    454 Mercruiser bravo drive
    Usually the transformer is the culprit and can be replaced any 12v transformer will work just bring the board in to an electronics repair shop and have them solder in a new one .
    You'll get a better price if you dress in flannel and say CAMPER FRIDGE when you get it done it'll cost 70 % less
     
    Chris-380 likes this.

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