8. Fault Location Procedure
The ST7000 has been designed to achieve very high
standards of reliability combined with ease of servicing.
If a fault should appear, please double check that all
connections in the connector unit are sound and that the
heavy duty power connections are tight and free from
corrosion. If you are satisfied that all connections are
sound, the simple check procedure tabulated below will
assist you to locate the most likely fault area,
If the autopilot switches on but does not operate
correctly, check the rudder angle and heading displays
on the control unit. If these appear incorrect, double
check all connections from the course computer to the
compass and rudder reference transducers.
In the case of a sailing yacht fitted with a windvane
system, if a fault occurs only in vane mode then it is
likely that fault has developed
in the vane head or the interconnection system.
Since the course computer houses the majority of the
electronic control system there is a high probability that if
an electronic fault has occurred it will be located in this
area. The course computer unplugs easily from the
connector unit for servicing. (See Installation Manual).
Control Units are removed by undoing the two thumb
nuts (accessed from behind). Disconnect the cables by
rotating the locking rings anti-clockwise before
separating the connectors.
The faulty unit should be removed and returned to your
nearest service agent.
If ary difficulties arise, please consult Nautech's Product
Support Department in the UK or your own national
distributor who will also be able to provide expert
assistance.
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