ComNav Marine 1420 Autopilot System
Problems during Normal Operation
When the 1420 Autopilot detects a problem it will flash the lights on the Control Head.
Note: it is not possible for the Autopilot to warn you of every potentially serious problem
which can occur. You must be responsible for the safe operation of your vessel.
HEAD INDICATION PROBLEM & HOW TO FIX
All the lights blink on and off You have one of the following problems:
1. Your vessel is off course.
CHECK:
• Do you have enough speed to allow the Autopilot
to steer your vessel?
• Are you able to steer the vessel manually? If you
can't, then look for hydraulic leaks, check the
hydraulic fluid level. If you can steer by hand, see
if the Reversing Pumpset is working. Check
connections between Processor and Pumpset
Motor.
2. There is no information from the Compass.
CHECK:
• the Compass wiring connections
3. The rudder is not moving in response to the Autopilot.
CHECK:
• Is the steering system working properly?
• Is the Rudder Feedback moving with the rudder?
4. The Processor is overheating but it is still able to
operate. If possible, shut off the Autopilot to let it cool.
CHECK:
• Is the rudder or outboard motor free from any
debris which would interfere with its motion?
If you cannot find the problem, have the Autopilot serviced
as soon as possible.
Document PN 29010012 V1.3
55
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