Unknown electrical switch?? - Page 2 - SailNet Community
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post #11 of 76 Old 03-17-2011 Thread Starter
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Originally Posted by eherlihy View Post
Somewhere in the Atlantic, there is a lighted bouy blinking on and off as you flip that switch.

Assumption is that because it is close to the AC panel, it has something to do with AC...

The two most common AC "options" are (as others have already pointed out); Battery Charger, and Water Heater. Because there is a light on it, I would guess Battery Charger.

However, because the boat looks to have some, uh... non-standard wiring, it could control virtually anything.

If it were my boat, I would be rewiring EVERYTHING connected to this panel with tinned - stranded - Marine grade AC wire.

I agree with the assumption to AC..

the only battery charger i ( know of ) is an external charger that plugs into the AC outlet then to the batteries directly.

could be the water heater - but who knows? I do have a water heater, but never use it ( or know how ).

I am in the process of re-doing the AC and DC panels, just to make sure where everything is and how everything works.

Any ideas on the Combi thingy?
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post #12 of 76 Old 03-17-2011
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Go head -- just push the button and find out what it does! You know you want to!!!


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post #13 of 76 Old 03-17-2011
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Actually, the rocker switch will light up if there is nothing connected to it. The red light embedded in the switch is just an indicator lamp to let you know the switch is on. You need to look at the back side of the panel to determine if it's not just a blank switch.

Gary
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post #14 of 76 Old 03-17-2011 Thread Starter
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well it has 'some' wires coming out of it.
I did not trace them, but I guess I will have to now.
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post #15 of 76 Old 03-17-2011
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The next step would be to measure the voltage using a standard multi-meter and determine whether the circuit is 110-VAC or 12-VDC. Set the meter at the AC Volts setting first--just to be on the safe side. If you do not get a reading at the AC volts setting, then switch to DC volts and see if you get a reading there. This will at least tell you what type of circuit you're dealing with and allows you to narrow the search down a bit.

Obviously, if you get a 110 VAC reading, then you know the circuit will be limited to either your water heater, AC or heat system(s). The list is much larger when you get to DC.

Good Luck,

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post #16 of 76 Old 03-17-2011 Thread Starter
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I will be doing this tonight. ( as well as replacing the bilge pump ).
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post #17 of 76 Old 03-17-2011
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FWIW, my AC panel has a master on/off switch, and then three additional switches: Battery charger, water heater, and cabin outlets. Same switch count as you. Coincidence?

As mentioned, the fact the panel is the same gold-ish color and discrete from the other switches indicates it is all a 110 VAC panel, so be careful.
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post #18 of 76 Old 03-17-2011
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Quote:
Originally Posted by SpcAlan1 View Post
Hey, also see my photo of the IMI Combi box ( under the port side cockpit seat ). It is going to the panel above the wheel, but I have no instruments in that panel... what exactly does this thing do?
Look like you may have had some Combi instruments at some point... likely died and removed except for this gem. It looks like the lighting control and a damping adj for a wind indicator.

Ron

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post #19 of 76 Old 03-17-2011
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Alan, as long as you are replacing panels you really should consider tracing out every wire that will be involved. And then either labelling both ends of it, if the wiring is good, or pulling and replacing any wiring that is bad. Pinched, corroded, chafed, a bit crispy, undersized...Sometimes you will find the PO spliced a wire by twisting the ends and taping over them. Sometimes there are dead wiring runs from removed equipment, which you may want to pull. Or. "leave 'em just in case" as so many folks do.

So while you've got the panel end off, explore. Take notes. Next time there's an electrical mystery on the boat, you'll be glad you did.
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post #20 of 76 Old 03-17-2011 Thread Starter
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Maybe so.
I do have a windvane at the top of the mast, so maybe this was part of the equipment.

I will never race this boat ( not need a wind speed indicator ) so i may just cut the wires to remove it. ( safely of course ).
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