Lowrance HDS 5 gen2 depth malfunction

[45user]

Originally Posted by kirkdavis

I had the same problem at LJ. Headed back to the beach my FF was suddenly reading deep. tried reboot...nothing. Finally figured out I was going over LJ canyon!!

I suspected that and it happened to me before but unfortunately it wasn't the canyon this time.
Btw how deep is the canyon?
Thank you!
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[YakDout]

Originally Posted by 45user

I suspected that and it happened to me before but unfortunately it wasn't the canyon this time.

Btw how deep is the canyon?

Thank you!

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Ive had depths over the canyon deeper than 1000 feet. Were you fishing over it when this was happening? If your gain isnt high enough, it wont mark bottom at the depth. Try turning up your gain til you get a depth.

[45user]

Originally Posted by YakDout

Ive had depths over the canyon deeper than 1000 feet. Were you fishing over it when this was happening? If your gain isnt high enough, it wont mark bottom at the depth. Try turning up your gain til you get a depth.

Hmmmm
I just looked up La Jolla canyon and I may have went over that. Yes it gave me over 1000' reading but I was pretty close to the shore I thought my ff was going crazy..
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[ful-rac]

Try it again in a known depth.

[rossman]

I had the exact same symptoms on a sonar unit many years ago and what threw me was it would only act up at La Jolla. Like you, I was amazed how close that deep water canyon was to shore and it was right on a line from the launch to the first waypoint that I headed to.

Originally Posted by 45user

Hmmmm
I just looked up La Jolla canyon and I may have went over that. Yes it gave me over 1000' reading but I was pretty close to the shore I thought my ff was going crazy..
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[Zed]

Originally Posted by rossman

I had the exact same symptoms on a sonar unit many years ago and what threw me was it would only act up at La Jolla. Like you, I was amazed how close that deep water canyon was to shore and it was right on a line from the launch to the first waypoint that I headed to.

And your analog son pointed it out.

[jorluivil]

I had that happen to me in LJ a few months ago but the problem had started a few weeks before that. While fishing in in 125’ of water my FF was reading 700’, I disconnected everything including the battery and even did a soft reset but that didn’t fix the problem. When I got home I cleaned my terminals on both the head unit and the cables, on my next outing everything was fine and has been fine since.

[45user]

Originally Posted by jorluivil

I had that happen to me in LJ a few months ago but the problem had started a few weeks before that. While fishing in in 125’ of water my FF was reading 700’, I disconnected everything including the battery and even did a soft reset but that didn’t fix the problem. When I got home I cleaned my terminals on both the head unit and the cables, on my next outing everything was fine and has been fine since.

Thank you! I will clean out my terminals when I go out next time.
Thank you all for great information and help!!!
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