I have an older Hummingbird (597 ci HD) mounted on the console of my boat that I have started having issues with. I need a little help deciding if I should just replace it or try to have it fixed..
The primary issue is that the depth finder component is giving me some heartburn. About 3 weeks ago the readings became intermittent.. that is the depth finder would start out when the boat came off the trailer, but when I started up running, the depth would go to .9 feet or essentially 0 feet in both the graph and the digital read out. Then when we stopped it would start working again. Now, in addition to this it occasionally shows the correct depth on the graph, but the digital read out is .9 feet.
The rest of the units functions appear to be working correctly.. that is the GPS, temp, etc.
First, I need some advice about identifying the specific problem... is the transducer or the unit itself? Initially, we thought it was that the transducer (mounted in the bottom of the boat) had developed some air space under it and that was causing it to be intermittent. Now with the discrepancy between graph and the digital readout, I am not so sure.
Second, at the time of purchase, this was about a $500 unit... Now I could get a Hummingbird Helix 5 inch (same size as the 597 exiting unit)for $350. Would it be cheaper to just replace the unit or have it repaired at Boris Marine... (given that it is the unit). Another associated issue is getting the existing puck out of the sump hole in the back of the boat... there is no room for another transducer. In fact there are 3 transducers in that hole since I did not remove a Garmin transducer that came in the boat and the transducer for a Lowrance digital flasher unity that is mounted in the dash... I am not certain how to get two of them out... I have been told that they are not easily removed.
I am looking for some suggestion other than to purchase a new boat....