Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 01-07-2010, 18:05   #1
Senior Cruiser
 
unbusted67's Avatar

Cruisers Forum Supporter

Join Date: Dec 2006
Location: Islesboro, ME
Boat: Looking for a new boat
Posts: 2,196
Images: 24
Mast Wiring Confusion

Maybe you can help me with this weirdness. I have an LED anchor light with polarity protection in it. I also have an incandescent steaming light. At the base of the mast there are three wires. When I go to turn on the anchor light nothing happens I leave that switch on and then turn on the steaming light and they both light up. I turn off the anchor light and nothing happens. Then I turn off the steaming light and they both go out. If I turn on the steaming light without the anchor light the anchor light does not turn on. ????? I am at a loss, only thing I can think is that the two lights are somehow run in series.
__________________

__________________
unbusted67 is offline   Reply With Quote
Old 01-07-2010, 18:10   #2
Registered User

Join Date: Apr 2010
Location: Edmonton
Boat: Cheoy Lee OS40
Posts: 26
sound like you have one of your wires switching through the ground.

OTC
__________________

__________________
oldtomcat is offline   Reply With Quote
Old 01-07-2010, 18:15   #3
Senior Cruiser
 
unbusted67's Avatar

Cruisers Forum Supporter

Join Date: Dec 2006
Location: Islesboro, ME
Boat: Looking for a new boat
Posts: 2,196
Images: 24
What do you mean switching through the ground?
__________________
unbusted67 is offline   Reply With Quote
Old 01-07-2010, 19:52   #4
Registered User
 
sabray's Avatar

Join Date: Aug 2008
Location: Wash DC
Boat: PETERSON 44
Posts: 3,169
how about a diagram? are the switches independent? I am thinking the ground is crossed or there is a fault in the switch if it is combined.
__________________
sabray is offline   Reply With Quote
Old 01-07-2010, 20:31   #5
Registered User

Join Date: Apr 2010
Location: Edmonton
Boat: Cheoy Lee OS40
Posts: 26
What I think your problem is; that you have a common ground wire in the mast and that wire is going through one of the switches. Niether of the lights will come on until you switch on the switch that the groung wire goes through and thereby completing the circuit.

OTC
__________________
oldtomcat is offline   Reply With Quote
Old 01-07-2010, 22:01   #6
Registered User

Join Date: Mar 2009
Posts: 213
I have tried to draw this out and damnifIknow. I am not catching the interconnection that exists. Trace the wires back to a connector and pull all apart, then start with a pair of wires going up the mast and determine what wires run to what light. If the anchor light has a polarity diode it will be easy to find the correct polarity for the anchor light and thus the common wire. This could be wired as positive common or negative common and it does not matter to make it work.

If none of this works, then there is miswiring in the mast somehow, but I think not. Now that you know the wire code, simply rewire the spst switches to work. Oh, and make sure you are working with spst switches!

"Nothing seems very complicated once you figure it out!"

Um Saudade
__________________
um saudade is offline   Reply With Quote
Old 02-07-2010, 04:31   #7
Senior Cruiser
 
Blue Stocking's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: St. Georges, Bda
Boat: Rhodes Reliant 41ft
Posts: 4,114
The incandescent bulb is not polarity protected, it doesn't care which wire is (+) and which is (-) The LED is probably protected by a diode. If you have the LED wires reversed, it will not come on. But when it's switch is on, it allows the ground to be made for the Incandescent. Make sure both (-) sides are connected and see if that solves your problem.
__________________
so many projects--so little time !!
Blue Stocking is offline   Reply With Quote
Old 02-07-2010, 17:19   #8
Senior Cruiser
 
unbusted67's Avatar

Cruisers Forum Supporter

Join Date: Dec 2006
Location: Islesboro, ME
Boat: Looking for a new boat
Posts: 2,196
Images: 24
this is a dislexic's nightmare
__________________
unbusted67 is offline   Reply With Quote
Old 02-07-2010, 18:30   #9
Registered User

Join Date: Jul 2009
Location: Somewhere in the South Pacific
Boat: 1984 CS 36
Posts: 238
this probably isn't the only possible wiring configuration that'd produce these results, but here's my guess:

you've got the steaming light switch installed on the ground wire, after the anchor light. therefore, the steaming light has to be on for the anchor light to see a relevant ground.

see the sloppy schematic.
Attached Thumbnails
Click image for larger version

Name:	swich cofig.jpg
Views:	212
Size:	157.8 KB
ID:	17501  
__________________
kb79 is offline   Reply With Quote
Old 02-07-2010, 21:58   #10
Senior Cruiser
 
unbusted67's Avatar

Cruisers Forum Supporter

Join Date: Dec 2006
Location: Islesboro, ME
Boat: Looking for a new boat
Posts: 2,196
Images: 24
Quote:
Originally Posted by kb79 View Post
this probably isn't the only possible wiring configuration that'd produce these results, but here's my guess:

you've got the steaming light switch installed on the ground wire, after the anchor light. therefore, the steaming light has to be on for the anchor light to see a relevant ground.

see the sloppy schematic.
no that actually really helps and explains why I wasn't getting results when I was switching the wires around at the deck junction. I need to get to the breaker.
__________________
unbusted67 is offline   Reply With Quote
Old 03-07-2010, 08:21   #11
Registered User

Join Date: Nov 2009
Posts: 91
Quote:
Originally Posted by Blue Stocking View Post
The incandescent bulb is not polarity protected, it doesn't care which wire is (+) and which is (-) The LED is probably protected by a diode. If you have the LED wires reversed, it will not come on. But when it's switch is on, it allows the ground to be made for the Incandescent. Make sure both (-) sides are connected and see if that solves your problem.
LED = Light Emitting Diode. A LED is a diode and has to be hooked up with the correct polarity with DC voltage to emit light.

Gordon
__________________
gmau is offline   Reply With Quote
Old 03-07-2010, 08:35   #12
Senior Cruiser
 
Blue Stocking's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: St. Georges, Bda
Boat: Rhodes Reliant 41ft
Posts: 4,114
Quote:
Originally Posted by gmau View Post
LED = Light Emitting Diode. A LED is a diode and has to be hooked up with the correct polarity with DC voltage to emit light.

Gordon
Gordon,

My Oops! 1 diode too many in my thought process.
__________________

__________________
so many projects--so little time !!
Blue Stocking is offline   Reply With Quote
Reply

Tags
mast

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cockpit confusion or Mast mayhem ribbony Deck hardware: Rigging, Sails & Hoisting 22 28-11-2008 18:41
need help with mast wiring Roy I. Olsen Construction, Maintenance & Refit 13 26-10-2008 18:15
Mast wiring drh1965 Electrical: Batteries, Generators & Solar 8 03-12-2007 13:33
Wiring inside the mast orion1 Construction, Maintenance & Refit 4 15-06-2006 09:58
Mast wiring Ted Beyer Electrical: Batteries, Generators & Solar 4 07-05-2005 02:51



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 00:23.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.