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• If that occurs try lower the speed of your boat or try a trolling speed. To get a more accurate detail in a certain area, you may even consider stopping your boat in several places. High temperature may also have a detrimental effect specially on the display unit of Hummingbird Fish Finders.

• Replace the accessory that is causing the problem. Check for proper voltage to your depth sounder at the connection to the battery or at the fuse panel. This will ensure that you are getting the proper voltage to the fish finder.

• High temperatures may damage the electronic components of the system. Depending on the water you’re fishing in, black dots may be displayed on the screen of your Hummingbird fish finder.

So, do not leave the depth finder in the trunk of a car or a closed car, or out in direct sunlight for a long time. High temperatures may damage the electronic components of the system. Depending on the water you’re fishing in, black dots may be displayed on the screen of your Hummingbird fish finder.

Wire the fish finder direct to the battery (either the cranking battery or an auxiliary battery). Don’t take shortcuts and run the fish finder power wire into a block or switch panel. Wire your fish finder the right way and extend the Humminbird power wire directly to the battery using the correct type and gauge wire.**

Replace the accessory that is causing the problem. Check for proper voltage to your depth sounder at the connection to the battery or at the fuse panel. This will ensure that you are getting the proper voltage to the fish finder.

High temperatures may damage the electronic components of the system. Depending on the water you’re fishing in, black dots may be displayed on the screen of your Hummingbird fish finder.