Did you buy this boat with the TM already on it?
I would disconnect at the batter and pull wires out at TM. When you do the make sure to pull a fishing wire at the same time.
Cut wires at the connection. Test TM by wiring it straight to batteries without that spliced connection. This would be an easier task if it were wired with a plug. If trolling motor is good, simply rewire with plug.
My gut is telling me the problem is in the TM. Why all high speeds but no low speeds? Open the head of the TM and see if you see a disconnected wire. Or some sort of wiring issue.
I’ve had 24 volt I pilot motors wired straight to the batteries on my flats boat for 7 years and have never had a connection problem. I would pull the old wires and run new straight to the battery again. If you don’t plan to ever remove the motor then I wouldn’t deal with a plug. Just my opinion though especially if it’s going in saltwater. If you do go the plug route get a battery tender. Are you getting the green light and audible beep beep when you deploy the motor?
Bobby
You absolutely want a 20amp trolling motor "breaker" installed on the wiring also.
This protects the motor if you short something out. They are small, simple and cheap.
The breaker "trips" and takes one second to reset it if there is ever a problem
I read up on this a little more last night. Seeing as you don't have 1-4 but have 5-whatever...I'm going to go with the variable speed control panel in the head of the TM. Just reading and guessing though.
I had this problem with same tm and had a bad cell on a battery. Batteries lived on a charger. Would recharge and kick off to trickle. But acted goofy like what you’re talking about. Did you say you tested them individually under load? I’d start there before I started pulling wire.
\"We say grace and we say maam, if you ain\'t into that, we don\'t give a damn.\" HW Jr.
if:
a. hooked direct to battery, TM functions as it should
&
b. hooked to the backwoods "under bow" connection, you're getting the intermittent operation
Then the connection is the culprit, and either neatly wire direct or put in the bow mount TM connector with appropriate sized cable (with inline fuse of course) and roll. I feel like there's some missing info otherwise, or my reading comprehension demonstrates the true failure of the Berkeley education I received.
All of this
There are 3 places you could have the issue:
Batteries
Wire/connection
TM
Have you just swapped out batteries for known good ones yet? Borrow from a truck etc. this will give you an idea where the problem is.
After that try running the TM off fresh wire/no connections.
If neither of those works it’s the TM, take it in to a repair center.
Ended up being a bad plug. Took the faceplate off and found the connection at the bow. Well I didn’t but somebody who knew what they were doing. The plug connection was losing 12 volts. Ended up just direct wiring directly to the batteries and I am going to replace it soon anyway. Runs like a top now.
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