I have an Autohelm ST50 Plus Tridata head unit. My depth works fine. My speed is intermittent to non existent. I read the post titled ST50+ Tridata and plan to run the test shown there on the paddlewheel.
I do not know the part number of the transducer - Can you identify from the attached photo? The cable shows "Airmar Transducer Cable #C9 C1225" but there are no markings that I can see on the transducer itself.
Questions are:
1. If the paddlewheel is not showing correct function with the Ohm meter, are there replacement parts available to replace/rebuild the paddlewheel portion of the sender? part Numbers please.
2. If not, what sender is the correct unit to replace mine without having to replace the through hull? part Numbers, please.
Appreciate your replies.
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Transducer.jpg (Size: 33.02 KB / Downloads: 1)
I do not know the part number of the transducer - Can you identify from the attached photo? The cable shows "Airmar Transducer Cable #C9 C1225" but there are no markings that I can see on the transducer itself.
Questions are:
1. If the paddlewheel is not showing correct function with the Ohm meter, are there replacement parts available to replace/rebuild the paddlewheel portion of the sender? part Numbers please.
2. If not, what sender is the correct unit to replace mine without having to replace the through hull? part Numbers, please.
Appreciate your replies.
Transducer.jpg (Size: 33.02 KB / Downloads: 1)