Humminbird 898csi HD right side is dark on side imaging

[locnload7]

Since installation the right side of my side imaging picture is extremely dark. What could possibly be the issue?

[Humminbird_Greg]

The transducer could have a problem with the right side Si sonar.
The installation of the transducer could be the problem.
The unit could have a problem with the right side Si sonar.
Your boat may list to one side while in use on the water.

Let’s try and eliminate some of these:
- If you know of anyone else that uses a Humminbird Si model unit, test their unit on your transducer and power cable (even if you have to hold the cables in by hand). Any Humminbird Si model will work for this test. Cross-test your unit on their boat and transducer as well.
- Take a few pictures of the installation of your HDSi transducer and post them back here. Take these from transducer height. We need at least one pic of the overall transom of your boat and at least one looking from the left side of your boat across to the right side of the transom. One from directly behind the transducer will be helpful as well.
- If you are using an AS-Si-DB-Y or transducer switch; take these out and direct connect the HDSi transducer to your 898c HD Si unit and see if it makes a difference or not.
- If your boat is listing badly enough to cause this, you need to think about rearranging the load that your boat is carrying.

[locnload7]

OK thanks for reply. I will give it a try.

[makomugs]

Since installation the right side of my side imaging picture is extremely dark. What could possibly be the issue?

I have a 998. After performing great for some time, one side went dark. Before I called support, I reset factory defaults. It worked! Not saying it will do it for you, but it is easy to try.

[shut-up-and-fish]

I have a 998. After performing great for some time, one side went dark. Before I called support, I reset factory defaults. It worked! Not saying it will do it for you, but it is easy to try.

+ 1

Not always but never eliminate going back to factory defaults as well as what Greg has stated above....

[locnload7]

I will give that a try also. Made adjustments to my ducer but was unable to put the boat in the water this weekend. If thats not the problem i will try the factory default setting. Plan to get out this weekend though and will keep you posted. Thanks for your help.

[locnload7]

Went out yesterday after adjusting the ducer and restoring defaults. The same issue exists. Took photos of screen and ducer. I don't have a buddy with a compatible unit to trouble shoot.

[locnload7]

Here are the rest of the photos

[locnload7]

Here are the rest of the photos

[shut-up-and-fish]

Mount looks fine. Question: You do trim the motor up when searching/cruising for structure correct?

If so you may have a transducer that has failed.