Porch Light Problem - Fiberglass RV


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Old 07-05-2010, 11:35 PM   #1
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Last year i had some help rewiring my trailer running lights and once i got the hang of it i tackled the interior lights . Everything works fine except for the porch light , i always blow fuses . I used #12 wire for both runs neg and pos . What would be the correct way of doing it properly . The switch is seperate from the light , i think my problem lies with the way i wired the switch . Can someone please help me sort this out . Also what amperage of fuse do i use .
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Old 07-05-2010, 11:44 PM   #2
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Is the switch on either the -ve or +ve? Not both?
What else is on the circuit?
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Old 07-06-2010, 12:29 AM   #3
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is it on a switch (besides the one on the porch light?)
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Old 07-06-2010, 12:30 PM   #4
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Is the switch on either the -ve or +ve? Not both?
What else is on the circuit?
I have both black and red wires running from the light to the switch on the wall inside , to the two terminals on the back of the switch . Should the black wire bypass the switch and go directly to the ground ?
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Old 07-06-2010, 12:31 PM   #5
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is it on a switch (besides the one on the porch light?)
Yes it is seperate from the light .
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Old 07-06-2010, 04:07 PM   #6
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Perry, the negative wire should go straight to the light, and it connects to the shell or outer part of the socket.
The positive goes to the switch then from the switch to the centre pin on the light socket.

Joe
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Old 07-06-2010, 04:36 PM   #7
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Yes it is seperate from the light .
I finally fixed the problem .
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Old 07-07-2010, 12:20 AM   #8
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Thanks Joe,
I always get them mixed up, now I have a way to remember.

Postive to the Power switch to the Pin. 3P's in a pot.
The negative is a straight line just like on the battery (-)
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Old 07-07-2010, 03:04 PM   #9
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Perry, the negative wire should go straight to the light, and it connects to the shell or outer part of the socket.
The positive goes to the switch then from the switch to the centre pin on the light socket.

Joe
It works great now , but what amp fuse should i use ? There is nothing else on the circut . Thank you all for your expertise .
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Old 07-07-2010, 06:27 PM   #10
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2 or 3 amps should be fine, if you used #14 wire you could go as big as a fifteen, but I tend to stay on the conservative side myself.

Joe
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