Originally Posted by FDR14127
He is referred to on our boat as 'Crazy Otto". Runs for awhile then takes a hard tack to port and goes in circles. Not so often last year as we replaced the batteries and that seemed to help.
Probably a Long shot, but you might want to check your 12 volt cable runs...
On our former Niagara 26, we had originally run the AP power cable thru the stern laz, beside the coax for the stern-rail-mounted vhf antenna.
No problem until one day I keyed the mic and the boat turned sharply to starboard!
Later, after confirming the cause/effect and looking over the installation, I moved the wiring apart and solved the problem...