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Electrics failed #18025
10/21/18 10:00 PM
10/21/18 10:00 PM
Joined: Oct 2017
Posts: 27
BC
P
Pabs Offline OP
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Pabs  Offline OP
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Joined: Oct 2017
Posts: 27
BC
My Electrics have suddenly failed and I can't work out why. I gad an issue with my nav lights and i thought i had found the issue. When I went to turn them on everything switched off my panel appears to not be getting any power and I can't work out why as I have power going to my engine and peering the engine panel. Thoughts????

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Re: Electrics failed [Re: Pabs] #18026
10/22/18 05:42 AM
10/22/18 05:42 AM
Joined: May 2007
Posts: 2,567
Portsmouth, RI
Rhapsody #348 Offline
Past J/30 Class President
Rhapsody #348  Offline
Past J/30 Class President
Joined: May 2007
Posts: 2,567
Portsmouth, RI
There is a fuse holder buried in the harness near the battery switch on the output of the selector switch. It probably has corroded internally and needs to be replaced. Many boats have exhibited this problem.

Re: Electrics failed [Re: Pabs] #18029
10/22/18 08:46 PM
10/22/18 08:46 PM
Joined: Oct 2017
Posts: 27
BC
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Pabs Offline OP
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Pabs  Offline OP
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Joined: Oct 2017
Posts: 27
BC
Found it!! thanks so much also found that my navigation wire is toast. Do you know what cable I should use to replace it? 14 or 12 gauge?

Re: Electrics failed [Re: Pabs] #18031
10/23/18 12:39 PM
10/23/18 12:39 PM
Joined: May 2007
Posts: 2,567
Portsmouth, RI
Rhapsody #348 Offline
Past J/30 Class President
Rhapsody #348  Offline
Past J/30 Class President
Joined: May 2007
Posts: 2,567
Portsmouth, RI
How much current does it take and what is the length of the run?

Re: Electrics failed [Re: Pabs] #18032
10/23/18 01:50 PM
10/23/18 01:50 PM
Joined: Oct 2017
Posts: 27
BC
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Pabs Offline OP
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Pabs  Offline OP
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Joined: Oct 2017
Posts: 27
BC
Its a 30' run in total and the lights are LED unfortunately I can't find what there current usage is.

Re: Electrics failed [Re: Pabs] #18036
10/24/18 07:26 AM
10/24/18 07:26 AM
Joined: Jul 2018
Posts: 44
Burton, Michigan
N
nathankt79 Offline
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nathankt79  Offline
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Joined: Jul 2018
Posts: 44
Burton, Michigan
I'm not an electrician, but I would go with the #12 wire...runs cooler, has less current drop over length, and can take a higher amp draw without resulting in excess heat or load on the unit. However, when in doubt, replace it with what was there if it worked that way for a long time.

Re: Electrics failed [Re: Pabs] #18037
10/25/18 04:54 AM
10/25/18 04:54 AM
Joined: Oct 2018
Posts: 4
UK
M
Miko78 Offline
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Miko78  Offline
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Joined: Oct 2018
Posts: 4
UK
Good point the best way to solve the situation is to replace it with what was there if it worked that way for a long time.

Re: Electrics failed [Re: Pabs] #18040
10/25/18 06:05 AM
10/25/18 06:05 AM
Joined: May 2007
Posts: 2,567
Portsmouth, RI
Rhapsody #348 Offline
Past J/30 Class President
Rhapsody #348  Offline
Past J/30 Class President
Joined: May 2007
Posts: 2,567
Portsmouth, RI
Originally Posted by Pabs
Its a 30' run in total and the lights are LED unfortunately I can't find what there current usage is.

If it is just LEDs you are more than adequate with 14 ga wire. Use marine grade tinned wire and run both the positive and negative leads.

Re: Electrics failed [Re: Pabs] #18053
11/03/18 06:35 PM
11/03/18 06:35 PM
Joined: Jun 2000
Posts: 112
Melbourne, FL, USA
Rob Van Name Offline
Senior Member
Rob Van Name  Offline
Senior Member
Joined: Jun 2000
Posts: 112
Melbourne, FL, USA
I had this fuse holder fail on Nordic Star also. Until it failed I never knew it was there.


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