Trolling motor popping breakers on high!

[cub48]

Minn Kota 70# Edge foot control. Has anyone had any problems with the Edge blowing the circuit breakers on high. I know this is a sign of pulling too many amps. Here is my setup two batteries two 40amp 24 v circuit breakers 4 cables #4wire ran to a plug that switches it to 24v when i installed the motor i checked the plug going to the trolling motor it was 25v it only does this when it's running on high but it seems the batterys don't last as long as it should. Put an armature in a while back but all seems free and it was ordered from Minn Kota. All connections are clean. What is the amperage draw on this motor on high to low no load and loaded in the water.Cub48

[cub48]

Just went out and checked amp draw with no load and it was 1.8 to 2.0 amps on all speeds.Cub48

[Redy2Fish]

I am having a similar problem with an Edge 45 12 V FC. It only does it when I run it on high for an extended time, prolly over 20 ot 30 minutes. I did as much reading and research as I could, ended up cleaning the contacts, checking the connections, etc. I thought at 1st I needed to replace the wiring with 6 gage as I had installed the Edge to replace an older MG and just used the same wiring which I assumed to be too small, but, when I actually checked it I had 6 gage which appears to be in good condition. When the breaker tripped the 1st time, the positive wire was extremely hot near the battery. I tested it Friday with a long run on high, after cleaning contacts, etc., by running it for a little over 30 minutes on high. The wire still got hot, but, not as hot as before, and the breaker did not trip. I spoke with a TM service person and he said it was common for the wire to get very warm, but, the breaker should not trip. I didn't check the amp load, but, will if problem continues. I think it's just the nature of the Edge to do this when ran on high for very long? Maybe some of the experts will see our posts and join in with opinions and advice. Batteries seem to hold up well, the one I used for the test on Friday still had 65% remaining after running for slightly over four hours, at least 1/2 of that was on high? Should get a couple days fishing if running on normal, 2 or 3, fishing speed.

[Barnacle Bill]

Both of you should have at least a 50 amp breaker. For a straight 24V system (batteries wired in series) you only need 1 breaker on the positive lead at the batteries.

[flycaster]

remove the top of the trolling motor hood. Check where the wires go down the shaft. See if the wires are tied in a knot, which is sort of a strain relief. This knot may be getting hot and the insulation of the wires may be melting and causing the wires to short against each other.
Post back with what you find.

[Cane Pole]

What Super Bill said.

[cub48]

Mine has a 40amp breaker on each battery has 4 wires running up to the master plug the master plug switches the 2 batteries to 24v. I checked it this morning and had over 25V on the 2 wires going to the motor. Yesterday the motor tripped the breakers after running on high for about less than 5 min. I cleaned the terminals a few weeks ago and they are still clean when i took them off yesterday. It will run on 3 and not trip this motor is less than a year old. Cub48

["G"]

Both of you should have at least a 50 amp breaker. For a straight 24V system (batteries wired in series) you only need 1 breaker on the positive lead at the batteries.

Bill is right....your breaker is too small for a 24 volt TM

[wilbur]

Bill is right....your breaker is too small for a 24 volt TM

its too small for a 12 volt

[BigRiverMarine]

its too small for a 12 volt

You could have a weak breaker. Change it with the 50-60 amp and you'll be fine.