No depth reading

Thanks for giving me a few more things to try, guys.

Tried again & still not getting depth. Did I mention that the 998 as on the console and a 788 on the bow and they are interlinked. I'm getting depth on the 788. I tried to move the read-out position on the 998, had depth in #2 so moved it to others and it still shows a blank where the depth should be.