wiring?

[Rick Reisewitz]

I just got around to rewiring my hb flasher and now when i use my trolling motor the flasher will not show the bottom my transducer is on the transom and i have a bow mount. If i am running around with the gas motor it works just fine slow or fast. I would rather not have to have two batteries in the boat since i don't have room. My other boats that i have owned have only had one battery and everything ran fine at the same time. I have it wired through a fuse pannel with a 1 amp fuse that was in the manual. There is nothing in the troubleshooting that has anything to do with it. Any suggestions on what to try?

[marine_man]

So I'm clear, you have the trolling motor and the depth finder on the same battery, correct?

If so, that's likely the problem... you're getting interference from the trolling motor. Do you have a vexilar, or other 12V battery? Try (to isolate the problem) wiring your depth finder directly to that, and see if it works better.

marine_man

[Rick Reisewitz]

Yes you are correct marine_man. I've got two extra batteries for my ice fishing flasher i'll try using one of them this afternoon when i go out and see if it works. I've always used one battery in every boat the only thing that is different is that they where transom mount.

[marine_man]

And that's a possibility as well for why it won't read, but let's start with the more straight forward stuff first.

marine_man

[Rick Reisewitz]

Well i made it out for 4 hours and it worked fine hooked up to the other battery. So is there anyway to make just one battery work or do i have to live with a extra battery in my way.

[marine_man]

Not that I'm aware of... Trolling Motor interference with a depth finder is something that happens... and as far as I know there's no solution short of a separate battery.

marine_man