Originally Posted by cutlass
My Raymarine st60 speed refuses to give a reading. I've cleaned the spinning wheel and checked connections but it still doesn't work.
My thoughts is the transducer has a fault. I can't see a way of opening it. Are these things that can be serviced if I give it to a Raymarine technician or should I not bother and just order a new transducer?
My ST60 screen
"burned" in. I was very fortunate and quick to buy a used speed and depth
setup from a member
here. I have a spare transducer now as the one I purchased came with a transducer as well.
I presume the display head
is turning on and displaying? I presume the transducer is out and in your hand and you are spinning the wheel manually.
There are three things that can go wrong - head
, cable or transducer.
In this thread GordMay posted just about the best troubleshooting sequence for this on the net. No need for me to retype what he wrote...
Raymarine ST60 - No Speed Reading
The only question I have is his item 3 - I am not sure of the decision logic at this point. If the head reads by shorting the center to shield then the head appears to be working.
If the wheel turns but does not generate a signal (he head is confirmed good already) the transducer is bad. If at this point the wheel turns by hand and generates a signal then the water
flow to the wheel may be bad (hull fouling) or the wheel resistance to turning is high and wont turn with water
flow - either way potentially bad transducer.
PS - my transducer when clean will turn by blowing on it - i.e. it should turn completely freely.