667 fish finder

A

Anonymous

Guest
I've been doing some re-wiring on my boat. In the process, I saw that some NEMA wires were connected to my fish finder, the Furuno 667, but from devices that are no longer on the boat, so I removed that wire. I took the boat out for a test run yesterday, and turned on my fish finder, but it would not read bottom. My first question is, does there need to be anything plugged into the NEMA connecter? The transducer is an Airmar thru-hull. I'm not sure of the model, but the cable says #C32 as well as C1225I. Also, the temp was reading 99.9 which is wrong as well. Is it possible that the transducer went bad for sitting for a while? It has been about 8-10 months since the fish finder has been turned on. The boat is kept in a bottom liner in the water, so excess growth shouldn't be the culprit. I'm just wanting to make sure I didn't do something wrong.

Thanks.
 
My first question is, does there need to be anything plugged into the NEMA connecter?

No, you do not need NMEA connected for the sounder to function.

Is it possible that the transducer went bad for sitting for a while?
Possible. We find most 600watt transducers last from 5 to 8 years.

90% of all sounder problems called into our tech support is normally transducer related. Although this is an old machine, it is till still more likely that you have a transducer issue. It might be useful to see if you can loan out a test transducer from your dealer or local marina and hang a good one over the side of the boat for testing purposes.
 
Back
Top