No navigation lights, anchor light, spotlight, cockpit lights, wipers all inop

Discussion in 'Electrical Stuff' started by Cory Gallus, Dec 2, 2020.

  1. Cory Gallus

    Cory Gallus New Member

    4
    Dec 2, 2020
    500 Sundancer
    QSM-11
    Looking at a ‘04 500 Sundancer. All the cockpit lights, nav lights, anchor light, spot light, wiper and horns inop. Marina service department wasn’t very helpful. Wondering if anyone has ram into this? From what I could find it looks like it has one main feed of power to fuse panel. I wasn’t able to dig into it as it was a survey for purchase
     
  2. dtfeld

    dtfeld Water Contrails GOLD Sponsor

    Jun 5, 2016
    Milton, GA
    410 Sundancer
    2001
    Axiom 12 MFD
    Cat 3126 V-Drives
    There are 3 main solenoids (electrically activated battery switch instead of the manual battery switches) that connect the batteries to the busses, Usually a Port, Starboard and Generator. If you press the buttons and don't get power and/or don't see an indicator light (you should be able to hear a solid chunk), you likely have an issue with the latching circuit or a bad solenoid.

    In looking at the schematic, it looks like there is a 75 Amp fuse (you'll have to find its location) that might fuse the energizing circuit (this is a very cursory look).

    Capture_LI (7).jpg
     
  3. dtfeld

    dtfeld Water Contrails GOLD Sponsor

    Jun 5, 2016
    Milton, GA
    410 Sundancer
    2001
    Axiom 12 MFD
    Cat 3126 V-Drives
    There are also breakers for individual DC items like cockpit lights, horn, Nav lights etc (I think these might be under the helm behind an access panel) that might be popped. If the issue is with the solenoid circuit described above, nothing on this panel should be powered/working.

    If its just a few items like you describe, check the breakers (they are usually push to reset). If this is the case, it would be odd to have several of these breakers popped and worth a little research as to why.


    Capture.JPG
     
  4. Cory Gallus

    Cory Gallus New Member

    4
    Dec 2, 2020
    500 Sundancer
    QSM-11
    Could hear a solenoid clunk when turning in and off. I personally wasn’t able to verify power as we were surveying. Have been looking through wiring diagrams also to see what it may be
     
  5. Cory Gallus

    Cory Gallus New Member

    4
    Dec 2, 2020
    500 Sundancer
    QSM-11
    everything on that panel, except the trim tabs doesn’t work. Guess I may have missed a few of the components on that run.


     
    dtfeld likes this.
  6. dtfeld

    dtfeld Water Contrails GOLD Sponsor

    Jun 5, 2016
    Milton, GA
    410 Sundancer
    2001
    Axiom 12 MFD
    Cat 3126 V-Drives
    I find it odd that nothing but the trim tabs works... You sure the trim tabs are working? Those breakers usually don't pop in groups...come to think of it I've never seen one pop. That breaker panel is easily accessible, should be right above your feet at the helm.

    If I are negotiating I would have the present owner get that fixed...and document what was wrong.
     
  7. Cory Gallus

    Cory Gallus New Member

    4
    Dec 2, 2020
    500 Sundancer
    QSM-11
    If you look at wiring diagram. It’s has 2 feeds, trim tabs are controlled off separate switch location. So wondering if that’s it’s separate feed. (Model dependent?). Yes they workers cause I was running them to verify operation.
     
  8. dtfeld

    dtfeld Water Contrails GOLD Sponsor

    Jun 5, 2016
    Milton, GA
    410 Sundancer
    2001
    Axiom 12 MFD
    Cat 3126 V-Drives
    I'd have to look a little closer but looks like your correct that entire panel has a dual feed. Power is coming in to the buss, then --> harness --> Switches --> devices This would be the normal setup.
     

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