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Nothing on boat is getting power

Old 06-14-2019, 04:54 PM
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Default Nothing on boat is getting power

Nothing on my boat is getting power. I have a cranking battery and trolling motor batteries that can also supply power.

I have a battery switch, 1, 2, and all. Cranking battery is 1, trolling motor batteries 2. I have tried 1, 2, and all. No power.

Checked all battery connections, they are secure. Batteries have power, checked with volt meter.

Suggestions?
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Old 06-14-2019, 05:02 PM
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All you can do is start at the beginning. Follow the battery to the first breaker/ disconnect. When you're checking with a voltmeter, be sure to load the circuit to see if the voltage drops. No load voltage test tells you little.
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Old 06-14-2019, 05:39 PM
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Had this problem, and it was the selector switch.
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Old 06-14-2019, 07:21 PM
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have you checked fuses? or auxiliary power switches? could be 1 bad connection somewhere near the fuse box if multiple circuits are effected.
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Old 06-14-2019, 08:37 PM
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Connect jump cables from the battery directly to the motor then turn the key to start the
motor.
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Old 06-15-2019, 03:38 AM
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Originally Posted by airbrush View Post
All you can do is start at the beginning. Follow the battery to the first breaker/ disconnect. When you're checking with a voltmeter, be sure to load the circuit to see if the voltage drops. No load voltage test tells you little.
This. Confirm voltage at every step in the way, you'll find the culprit quickly. Just went through this on mine - issue turned out to be a short piece of bad wire from the selector to a fuse causing no power to helm.

Good luck, and if you don't have one, get a decent multimeter, it will make this sort of troubleshooting a breeze.
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Old 06-15-2019, 04:43 AM
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Its probably the battery switch. Remove and check the connections on the backside of the switch.
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Old 06-15-2019, 02:30 PM
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Check your grounds. At the motor, at the battery switch, at ground block.

Do you have juice going into your battery switch? Do you have juice coming out of it?

If yes, do you have juice at your circuit panel/fuse block? What about ground?

maybe you also have a whole boat circuit box somewhere between the battery and switch or switch and fuse panel.

Start chasing from the battery.

Also, check the brittleness of your main power and ground leads. I bet maybe one of the wires or lugs is corroded or even broken.
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