My LiveScope recently began to start posting erroneous depth reading. So say I'm in five feet of water per my Helix sonar. The Garmen which is mounted in the same place will start showing varying depths say 15 then 70 and settles in on 70. The screen otherwise is fine. Anybody had a problem like this?

And then from time to time the LS presentation will start to "teeter totter", that is the right and then left side of the image moves up and down alternately. Doesn't do this all the time but it does happen. Anybody ever seen this?

Thanks for any suggestions or feedback.

Yes transducer is bad. Had similar problem went out on the water and called Garmin. they walked me through several steps to do & when that didn't work guy said transducer is bad we will send you a new one. I boxed mine up and sent it back to them. Once they received it they sent me a new one. Back working perfectly. He told me they had some problems with the LVS34. Hope that helps you out. Good luck fishing.
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my LVS 34 started doing the same thing as well

I would not run the Garmin and Helix at same time

Why? I have a Helix 12 w/ 360 and a Garmin 1222 w/ LV34 on the bow and no issues running both at the same time.

Well sometimes i run the Humminbird and the flasher they are not happy

That's good to know , i Changing out the bird with a Garmin 74 SV , that bird is old , 859 , the other on front is 93 with scope