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The Depth Reading Is “---”
First verify that the sonar sensor is plugged into the display housing properly by
turning the display on and listening for a ticking sound from the sonar sensor.
Make sure that you are operating the unit in depths between 1.5 and 99.9 ft (.5
to 30.4 m). Be aware that the depth is measured from the sonar sensor, not the
float.
Also make sure that the water is not overly choppy, causing the sonar sensor to
move around significantly. The sonar sensor must remain relatively stable to
achieve optimal readings. When necessary, lower the sonar sensor to hang
further from the surface of the water, providing more stability in rougher water.
I See Fish Under the Sonar sensor, but Nothing Appears on the Display
As with the depth reading, the fish finder will not detect any objects that are
closer than 1.5 ft from the sonar sensor. If you’re fishing in water that is less than
3 feet deep, it is recommended to discontinue use of the fish finder.
The Depth Reading is Incorrect
Make sure that you are pointing the sonar sensor perpendicular to the water
when trying to obtain depth readings.
Extremely heavy vegetation may confuse the sonar of the fish finder causing it to
misinterpret the depth. If you are certain that the readings are incorrect under
these conditions, discontinue use.
I’m Not Getting A Reading While Trying to Shoot Through My Boat Hull or
Ice
Shooting through the hull of a boat/canoe or ice can be difficult, as hidden air
pockets will prevent you from obtaining a reading. Make certain that the hull or
ice is solid from the surface to the water with no air bubbles and/or gaps.
Shooting through composite hulls (plastic) or cloudy ice is not possible as tiny air
bubbles are usually present in these situations.
I’m Getting False Fish Indications
The most common cause of false fish indications is extremely tall weed growth.
If weeds grow taller than 50% of the total water depth in a particular area, the
sonar will mistake it for fish. Trash & debris may also give false readings.
Adjusting the sensitivity setting to the lowest level may reduce these false
readings, but if they do not go away, it is suggested that you discontinue use of
the fish finder under these conditions.
