Okay thanks. There are two lights, red and green. The manual says to wait for them to balance and go out, then switch to duty, but the green one doesn't seem to come on. Could be burnt out or?? When sitting at the
dock in standby, the red light flickers on and off, but no green. I'm going to assume red is port ad green is starboard.
There is a right left toggle switch. I though it was seized but it was switching up and down. I rotated it in the socket so no it goes back and forth horizontally, but it might be upside down.

Regardless, when I've successfully had it cycling at the
dock, activating th switch either way has no affect on the
wheel. The wheel cycles back and forth a few inches every second or so, and I can't tune it out, so that would really eat the batteries.
Most times though it will go straight into a hard left until the wheel maxes out.
The
rudder dial is very stiff and turns past the end. This could be the locking screws but turning that doesn't seem to do anything either.
The binnacle in the hanging locker in the v-berth and there was a fire extinguisher hanging a few inches below and beside. I've removed it now. There are also some
electrical wires running up the same bulkhead maybe 6" away as well. Not sure I that would have an effect. The broker knew the owner who passed, and assures me it was working, so not sure what's up.