
ST50
Plus Tridata and Repeater Operation and Installation Handbook
Chapter 3: Fault Finding and Maintenance
Chapter 3: Fault Finding and Maintenance
3.1 Fault Finding
,
All
Autohelm
products are, prior to packing and shipping, subjected to
comprehensive test and
quality
assurance programmes. However, if a fault
arises with the ST50 Plus Tridata, the following table will help to identify the
probable cause and provide the most likely cure.
Fault
Cause
Action
instrument display
blank.
No supply. Check supply.
Check cabling
and
security of SeaTalk
connectors.
Check fuse/breaker.
Return unit for repair.
Instrument displays
‘CODE SET
The ‘Code Lock’ feature Enter correct code
has been set. number.
No speed or
temperature
information.
Transducer cabling
problem.
Check cabling and
security of transducer
connector.
No speed information. Transducer
paddlewheel fouled.
SeaTalk cabling
problem.
Clean paddlewheel.
No exchange of
information between
SeaTalk instruments.
Check security of
SeaTalk connectors.
Disconnect instruments
one by one to isolate
faulty unit.
Failure of a group of SeaTalk
instruments in SeaTalk cabling/connector
chain. problem.
Check security of
SeaTalk connectors
and non-functioning
units.
Depth reading flashes Transducer Check cabling and
continuously (depth
cable/connector
security of transducer
greater than 3 feet). problem. connector.
Depth reading flashes Aerated water Normal reading will
while underway. Boat wakes
return when clear of
Prop wash etc.
disturbed water.
Notice st50