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Old 06-12-2012, 12:15 AM   #1
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Default nav light and docking light.

the dash has two rockers to turn on the nav lights, and one for the docking, but they both go on with the nav lights, so whats the other switch for?
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Old 06-12-2012, 01:21 AM   #2
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You have 2 switches marked NAV Lights? On mine (which is older and smaller) I have 1 marked NAV Light and 1 marked Anchor Light. The Anchor Light switch is an ON/ON Rocker that feeds power only to Stern Light either from Source A (fuse block power) or Source B (feed from NAV Light switch). So when in the down ON position (which is Off for the On/Off switches, it is sourcing power from the NAV Light switch. So when you turn on NAV, it sends power to this switch which powers the light. When you flip the switch to up (which is On for the On/Off switches), it is sourcing power from the fuse block only and powers just the Stern light.

is this what you are talking about or am I way off base here?
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Old 06-12-2012, 10:49 AM   #3
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i think you got it right, so the anchor light burns, with the nav lights, and then without the nav switch when anchored powered directly....
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Old 06-12-2012, 01:10 PM   #4
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My 2004 2400 SC3 has but one switch for the nav and anchor lights. In the off (center) position neither work. In the up position only the nav lights work, and in the down position only the anchor light works.

I thought I read somewhere that you are not supposed to run with the anchor light on - just the nav lights. And you're not supposed to be at anchor with the nav lights on, just the anchor light.
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Old 06-12-2012, 04:08 PM   #5
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There should be NAV Lights and ANCHOR light. No DOCKING lights.

NAV LIGHTS: Turns on NAV lights (Red and Green) AND the Anchor Light (White Light)

ANCHOR LIGHT: Turns on Anchor Light (White Light ONLY)

Anchor Light is for anchoring ONLY. NAV lights are for running in conditions of reduced visibility (Night or Fog)
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Old 06-13-2012, 12:46 AM   #6
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when i click my NAV lights switch, both the NAV and Anchor lights switch light on the dash, and they both come on on the boat, reguardless of the possion of the anchor switch.

When I just click the Anchor light switch with the NAV lights off nothing happens.
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Old 06-13-2012, 01:20 AM   #7
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Could be a blown fuse on that seperate power feed. If you can get to the back of the switch you will see 3 wires on it. One is a jumper from the Nav Light switch. One goes to the Stern Light and the other should be 12v from fuse panel.
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Old 06-13-2012, 04:44 PM   #8
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Yep, this tells me that your connection in the switch is bad. Keep in mind the switch should have 2 positive leads and a single ground. One positive is for the actual anchor light. The other positive is for the light on the switch. Since the light on the switch actuates when the NAV lights are on (this is by design) AND the anchor light itself works when the NAV switch is thrown, I'd suspect the connections on the switch are bad.
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Old 06-13-2012, 05:26 PM   #9
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i think when i change a blub last year a wire poped off, and i connected the leads backwards, so the power goes right to the light, and not to the switch.... i realy be smart sometimes...

i will pull the dash foward and break something else to fix it.
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Old 06-13-2012, 09:23 PM   #10
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Hmmm, I don't know about that Shrew. Every lighted rocker I have seen uses the 12v feed for whatever it operates for the light. So in my best guess you should have 4 wires connected to the switch if it is a lighted rocker. This rocker "should" be a DPST On/On switch. So you should have 1 12v feed from the Nav light switch. So when the Nav switch is On, you should have 12v on this feed. When it is Off, you should have nothing on this feed. You should also have a 2nd 12v feed that is on all the time (this is the fuse block feed). When you flip the Anchor Light switch to the On position, it uses this feed to power the Stern Light. You will then have 1 wire that goes to the light itself. If you unplug this wire you will get 0v no matter what position the Nav switch or Anchor switch is in. And at last, you should have 1 ground wire (use an ohm meter to test for that). The light on the rocker needs this to iluminate. If not connected the rocker will function and turn on and off what it is supposed to (if it works) but the red light will not come on.

Now if it is not a lighted rocker than you will have 3 wires only. The 2 power feeds and the run to the light. No need for ground in this setup since the rocker is only switching power, nothing more.
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