Well, here is an update. As per e-mail instructions from customer service. I sent my 899 head unit and transducer in for warranty repair. I included a pacing slip with 5 pages of attachment.
The attachments included a printout of the e-mail thread that I had with customer service and two different photo-printouts similar to the failure image posted above.
After not hearing a word for 2 plus week, I received a FedEx package from Humminbird today.
Included was the paper work. It listed two items the Head unit and the HD transducer that I sent in.
The tech comments were as fallows: Sonar-SI Issue, Replace the control head. And Transducer no problem found.
As I started to unpack the items returned, I found the HD transducer that I had originally sent them and a brand new Helix 9, SI, GPS Version 1, with mount, cable organizer, and face cover.
Quite an upgrade from what I sent in.
I was very surprised and pleased. Thank you, Humminbird.