Question about Humminbird 947C GPS Receiver

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Transducer not connected

947c was working fine and now it's not working at all and it states that the "transducer is not connected". Ran a diagnostic on the 947c and it states that everything is working fine. Bought a new Transducer and it still says that the "transducer not connected". Checked all wires and connections and they all seem fine. Any suggestions?

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  • Anonymous Jul 07, 2008

    Mine says GPS not connected .. let me know how you make out.. Don't want to buy any parts till I know it's not the machine

  • davekrech Jul 23, 2008

    I am having the same problem and also bought a new transducer as I thought barnacles had fouled mine. Still same problem. I called Humminbird and as I was within 1 year warranty they did free repair in April 2008 (replaced a circuit board). The same problem reoccurred in June and again sent in to Humminbird. They did a free repair. The same issue "transducer not connected" occurred again July 20th. I called Humminbird and asked them to replace the entire unit. They said they could not as I had passed my original one year warranty period. They were also relunctant to do a free repair again for the same reason. I pointed out that the June repair invoice stated that the repair was guaranteed for 90 days. They reluctantly agreed to repair for free again. Let's see what happens. I fish every weekend and need GPS and Sonar for offshore wrecks so the repair downtime really puts a crimp in my fishing.

  • Anonymous Aug 04, 2008

    I have a 947c just over one year old. I purchased the extended warranty from West marine. They have offered to gt me a new transducer or switch it out for a new unit. However, I have to pay the difference between the new unit and the old unit. It sounds like I need to swap it out.

  • paulswebb Jan 20, 2009

    same problen in addition prior to failure the bottom was reading a "trench" under the boat for the flat bottom. I too replaced tranducer- no fix.

  • Lee Gardner Aug 05, 2012

    Has anyone found a solution to this problem. My 947c was working great and on the next start up started reading "transducer not connected" I have torn the boat apart. Cannot find anything wrong. Now it looks like it costs $480.00 dollors to have someone look into it at Hummingbird. Looks like they are sick of working on them! Let me know if anyone has found a solution that works.


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My 947 c says transducer not connected

Posted on Feb 11, 2010

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