ComNav 2001 Autopilot System
P/N 29010017 V1.0 - 63-
PROBLEM SOLVING
POWER STEER or higher mode. Check that the
voltage on the PORT OUT and STBD OUT lines
drop to less than 1.5 volts when their respective
keys are pressed. The red and green PORT and
STBD LED's should come on in the distribution
box when the respective red or green ARROW
key is pressed with the autopilot is the POWER
STEER mode. If all is correct, the problem is not
in the autopilot.
c) Check the rudder drive for correct operation.
For a 12 volt 4-way-valve, connect the common
line from the solenoids to UNSWITCH. PWR
(terminal 3 in the distribution box), rather than to
SWITCHED PWR.
d) Check both OUTPUT fuses. If either of them
is blown, replace it with a 5 X 20 mm 3.15 amp
fuse. Two spare fuses of this value have been
included with the autopilot.
4. The rudder turns hard over to one side.
a) Check the rudder follower for correct
operation.
b) Check the rudder follower cable for short or
open circuits.
c) Check the rudder drive for correct operation
(ie. sticking relays, sticking solenoid valves, etc.).
d) If the rudder appears to move normally with
the autopilot in POWER STEER, but goes hard
over with the autopilot in PILOT, recheck the
rudder follower and rudder drive connections in
the distribution box for correct hookup as
described in the DOCKSIDE SETUP section of
this manual.
5. The autopilot turns on, but does not operate
properly.
a) Turn the master select switch to OFF and then
to STANDBY to restart the computer program.
b) Check the voltage in distribution box for a
minimum of 10.0 VDC between PILOT PWR
and PILOT COM.
c) Check for problems in the cables leading to the
remote controls by unplugging them from the rear
of the autopilot.
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