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Old 07-02-2015, 06:23 PM   #1
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Default Blowing fuse on running lights

I have a 1999 Maxum 2800 SCR and when I turn on the switch to the running lights, the fuse instantly blows out. They worked fine until I did some work on the boat, and one of the things I did was open the dash, to run a transducer cable and figure I must have unplugged something or pulled on a wrong wire. If I only turn on the back mooring light, the fuse does not burn out, but as soon as I turn on the front lights it instantly blows. I notice on the switch there are 2 plugs that have nothing on them and I also noticed I have a red and black wire under the dash that are not plugged into anything? How do I begin looking for the problem? Attached is a photo of the inside of the switch showing two empty wire ports.

Any help is appreciated.
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Old 07-03-2015, 04:33 AM   #2
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I am assuming you must have installed a ground wire on the terminal for the nav light. Disconnect all black wires but note there current location. Then install one at a time until the fuse blows. This will tell you what is wrong.

Get the wiring diagram from the manual located on the Document tab.
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Old 07-03-2015, 11:06 AM   #3
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What was the fuse amp rating? Is it the correct rating ?

What other work was done?
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