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Name:   MrHodja - Email Member
Subject:   Nav Light Problem
Date:   8/15/2019 8:59:44 PM (updated 8/15/2019 9:14:54 PM)

So my starboard nav  light blew and I found a replacement bulb, installed it, and it blew as well. What could cause that to happen?  The new bulb was the same except it was 10 watts vs 8 for the original.





Name:   GoneFishin - Email Member
Subject:   Nav Light Problem
Date:   8/17/2019 5:07:26 PM

A few suggestions I uncovered that I have had success with over the years....

1. Cheaply constructed lights on a boat tend to collect condensation on the inside of the fixture. Always had moisture in it. The solution was simple and cheap. A little grease on the threads of the lens sealed the fixture. No more condensation. Go to the auto parts store and get a tube of di-electric grease and coat the base of the bulbs this will help prevent corrosion and will displace water form getting to the sockets also helps with vibration.

2. You are right about water contact blowing the bulbs. Upon closer inspection, the two tabs for the wire hook up protrude thru the base of the housing and this hole is open into the cavity that the bulb is in. So, splashling water or waves that hit the bottom of the deck could introduce water to the hot bulbs. Sealed the opening with rubber gasket with slits for the wire connectors.

Finally, the other thing I have done is to take a small piece of sandpaper and sand the contacts and metal inside the fixture to remove small amount of corrosion.

 





Name:   Shortbus - Email Member
Subject:   Nav Light Problem
Date:   8/18/2019 10:25:43 PM (updated 8/18/2019 10:26:12 PM)

Your problem is not the bulb but a bad connection to the bulb.

 

Scotchbrite or even a screwdriver to scratch/brighten the contacts.

Maybe bend the contact so that there is appropriate pressure to the bulb.

May incandescense be on your side.

 





Name:   MrHodja - Email Member
Subject:   Nav Light Problem
Date:   8/19/2019 10:27:03 AM

I wish it were that simple, but the inside of both blown bulbs is black, indicating an electrical arc that occurs when the filament separates.

Second new bulb hanging in there with about three or four hours operation.





Name:   GoneFishin - Email Member
Subject:   Nav Light Problem
Date:   9/1/2019 10:17:51 PM

Did you fix it? What caused the problem?





Name:   ninaholm - Email Member
Subject:   Nav Light Problem
Date:   2/11/2020 6:44:30 AM

I'm having an issue with my Navigation lights. All of a sudden they have stopped working, both fore and aft. Here is what I have learned so far:
1. Stern white light gets 12V of power all the way to the socket for the light bulb on top of the removable pole.I cleaned the connections on the pole, the socket, and the wiring below.
2. Bow lights get no voltage at all. It is a one light two color lamp there. I have cleaned the connections and re-crimped and still no voltage at all, even to a brand new light.
3. Switch that goes from Nav to off to Anchor seems to be working. Voltage is switched on and off to both locations as is appropriate.





Name:   krtracker - Email Member
Subject:   Nav Light Problem
Date:   5/29/2020 5:40:11 PM

your nav light switch is a 2 pole double throw swith. it is basicly 2 switches. 1 for all nav lights and 1 for anchor only lights. one side of your switch is bad or shorted. check the switch with meter









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