Depth finder only works while not moving???

[Mcollins]

Hello, my 2009 SX 230 depth finder is only working while sitting ? As soon as we take off it goes blank ? It’s the factory setup? Any ideas how to fix this ? Do not want to drill holes in bottom of boat! Thanks in advance

 

[sethman919]

The stock depth finders on boats from this era are known to be garbage. Previous owner said the one in my boat never worked. I replaced it with a humming bird. the cable fit through the stock opening and the bracket screwed in where the original was. no additional holes to drill.

 

[ToddW850]

Mine has done this too. But it came unsnapped in the back. Go to the back of the boat and make sure it is still snapped in place. It's on a hinge and will lift up. I'm guessing this is a safety feature in case you hit or run over something. But that's why it only works while stationary. When you take off, it's lifted to a higher angle.