Raymarine ST40 User Manual
Page 18
Chapter 2: Maintenance and Fault Finding
9
Action
Recharge your vessel’s battery as
soon as possible
Action
Ensure that reading stabilises when
clear of disturbed water, e.g. boat
wakes, propeller wash etc.
D4735-2
DEPTH
Action
Check fuse/circuit breaker.
Check power supply.
Check SeaTalk cabling and
connector security.
DEPTH
D4736-2
ST40
Action
Check the condition of the
transducer cable and the security of
the connections.
This symptom could also be caused
by weed on the transducer face.
No depth
information
D
D
D
D
Depth reading
flashes when
under way
Low battery
Display blank
DEPTH
ST40
DEPTH
ST40
1 minute
D4660-2
DEPTH
ST40
D4661-2
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