Lowrance fishfinder problem

[greyghost2]

My fishfinder use to be able to pick up fish while the boat was traveling at mid to faster speeds. Now all I can see is the contour of the bottom and no fish until I really slow down or stop. Does anyone have an idea as to what causes this and how to correct it?

[Nimrod]

The fish are all dead or deep from this stinking heat!

Try "Manual" mode and turn the sensitivity/gain up a bit. Strange you had readings before but not now. Try cleaning the transducer face. Make sure it hasn't popped loose from the bracket after running over something.

But do try the Manual mode if you aren't already. Get the most out of your machine.