ComNav 1101 Autopilot
with the pump. If after going through the pump
instructions the problem cannot be identified, contact
a ComNav dealer or the factory for service assistance.
The Autopilot will not auto-compensate a ComNav Fluxgate
compass. (The autopilot continuously displays “Turn vessel 360
degrees” even though more than 1 complete circle has been
made.)
1. Make sure the compass is mounted horizontally and that the
embossed arrow on the top is pointing towards the bow of the
vessel.
2. The compass sensor inside the unit is gimbaled. The sensor
may become “stuck” at a severely tilted angle if the compass is
not handled carefully. Gently shake the unit to “un-stick” the
gimbal.
3. Check the position of the compass. Ensure that it is not too
close to any ferrous metal objects or high-current cables.
4. Make sure that the compass is mounted using non-ferrous
fasteners.
If auto-compensation is unsuccessful after several attempts,
contact a ComNav dealer or the factory for assistance.
Problems During Normal Operation of the
Autopilot
The Rudder turns hard over to one side.
1. Check the Rudder Follower for correct operation.
2. Check the Rudder Drive and steering system for correct
operation (i.e. sticking solenoid valves, relays, etc.)
3. If the rudder appears to move normally with the Autopilot in
POWER STEER mode, but goes hard over in AUTOPILOT mode,
recheck the Rudder Follower and the Rudder Drive connections
in the Distribution Box for correct wiring. Perform a Dockside
Setup again.
The Autopilot turns on, but does not operate properly.
1. Turn the Autopilot off and then on again.
2. Check the voltage supplied to the Distribution Box for a
minimum of 12 VDC between “PILOT PWR(+)” and “PILOT
PWR(-)”
3. Check for problems in the cables leading to optional remote
controls by unplugging them from the rear of the SPU and
seeing if that clears the problem.
9 - 3 PROBLEM SOLVING
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