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38 ST7001+ Autopilot Control Unit - Owner’s Handbook
4 Fault Finding & Maintenance
NO DATA Caused by any of the following situations:
• the compass is not connected
• the autopilot is in Wind Vane mode and it has not received
wind angle data for 30 seconds
• the autopilot is in Track mode and:
• the autopilot is not receiving SeaTalk navigation data, or
• the position sensor (GPS, Loran, Decca) is receiving a low
strength signal – this will clear when the signal improves
Check the connections to the compass and/or wind instrument
and/or navigator.
Note: The autopilot stops adjusting the heading as soon as it
loses data.
NO PILOT The control unit is not receiving data from the course computer.
Check connections and check course computer is switched on.
RG FAIL GyroPlus yaw sensor has failed:
• If you have a Type 150G/400G course computer with internal
GyroPlus sensor – call a Raymarine service agent.
• If you have a Type 150/400 course computer with external
GyroPlus yaw sensor – check the sensor and connections,
then call a Raymarine service agent.
SEATALK and FAIL 1 or 2 SeaTalk data problem on one of the SeaTalk lines – check
connections.
SEATALK and FAIL The control unit cannot transmit data to the SeaTalk system.
Make sure all SeaTalk cables are connected properly.
ALARM MESSAGE CAUSE and SOLUTION