Minnkota 3 bank changer issues
 

I have a 3 bank onboard charger. When i plug it up to charge the middle one makes an awful buzzing noise and lights kind of flicker. Has anyone else had this issue? If so was it a bad connection somewhere or did the unit need replacing? Really scratching my head after doing a few checks.

Bump, anyone have issues before?

I have wire brushed all of the battery terminals and connections. I had some corrosion in my in line fuses but scraped and changed fuses and same results.

You might try MK tech support, they might give you an idea what to check.

It's a computer and is susceptible to power surge damage. Use a power strip


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I only plug to charge the night before i fish. I dont leave it plugged in 24/7. Boat hasnt Been in the water since early fall. After a few months i plugged it in to charge so i could just run it on the trailer and found the problem. So i think its more of a sitting too long issue.

Prob just been sitting too long, need to leave it plugged in and bypass any breakers so it won't lose power during the "fixin" process.