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| My Minnkota AP purchased in 1996 worked flawlessly for the 1st year. Then it began to wander off course. The compass board was changed twice under warranty. But the same problem would return every so often. Over time I noticed it occured more often when the temp was over 75-80 degrees outside. Last winter, our musky club had a speaker, Chuck Brod, owner of The Sportsmans Repair Shop in Mosinee, WI. He discussed his fix for the AP. Check voltage on the wiring at all connections leading up to the motor. You should have a minimum of 12.7 volts or the AP may act up. Clean and tighten all connections and if necessary, replace any crimp-on connectors that may be suspect. Over time, corrosion builds up degrading the circuit. Worked for me.
(Even though it's a 24 volt motor, your trolling motor plug has 4 pins, 2 power and ground for each battery.) | |
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