ComNav 1101 Autopilot
The displayed compass heading does not follow the actual com-
pass heading.
For Fluxgate Compasses,
1. Check for and remove any “portable” magnetic material such
as tools, tin cans, etc, near or directly underneath the
compass.
2. If there is a magnetic compass located near the fluxgate
compass, check for any compensating magnets, particularly
heeling magnets that are placed too close to the Fluxgate
sensor.
3. Redo the auto-compensation routine in DOCKSIDE SETUP
mode. See Compass Configuration in Section 5—Getting
Started.
For Compasses equipped with a Magnetic Sensor,
1. Check for and remove any “portable” magnetic material such
as tools, tin cans, etc, near the compass, or directly
underneath it.
2. The problem may lie in poor compass adjustment. Contact a
qualified compass adjuster to have the compass compensated
for deviation, including that caused by heeling error. Proper
compass compensation is particularly important on steel-hulled
vessels. Do not attempt to move any compensating magnets
or spheres yourself, as this may make the compass
dangerously inaccurate, especially if it is used as a steering
compass.
The Autopilot steers normally on some courses, but not on others,
particularly north or south.
1. This is a compass problem. Refer to the solutions above for
“The displayed compass heading does not follow the actual
compass heading.”
The Autopilot steers poorly on all courses.
1. Check that hard-over to hard-over time is correct.
2. Check that rudder and counter rudder parameters are adjusted
correctly.
For Fluxgate Compasses,
1. Redo the auto-compensation routine in DOCKSIDE SETUP
mode. See Compass Configuration in Section 5—Getting
Started.
PROBLEM SOLVING 9 - 4
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