Faulty transducer or faulty instrument?

[XDMusic]

My depth instrument, which has worked just fine until recently, will light up as usual when turned on but just show dashes instead of a depth. Is there an easy, simple way to tell if the problem is the transducer or the instrument? The boat is in the water.

Thanks!

 

[Sailgunner]

I think there are amp readings for each wire. Find out from the manufacturer what they are suppose to be and you can check if you are getting correct readings.

 

[Sefuller]

You could start with the easy things - pull the transducer from inside (have a plug or rag for the hole handy) and make sure the bottom is clean, then check the connections all the way from the transducer to the instrument.

 

[SG]

What instrument set, model, and what age?
Did you recently have the bottom repainted with anti-fouling paint; and did they cover the transducer?
How is the transducer installed? (e.g., does it shoot through the hull [holeless], or does it have a sleeve where you can pull it; etc.)

 

[Rich Stidger]

Check the cable connections to the back of the display head.

 

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