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Troubleshooting
Unit doesn’t power up.
a) Check the cable connection and wiring. Make sure the cable is properly connected to the
Fishfinder. The red wire connects to positive terminal, and black to negative terminal or
ground.
b) Make certain the battery voltage is not lower then the warning value (10 V)
c) Check the fuse.
Weak Bottom Echo, Unstable Depth Reading, or No Fish Signals.
a) Make certain the transducer is installed properly.
b) Extremely heavy vegetation may confuse the sonar signal, causing it to misinterpret the depth.
If you are certain that the readings are incorrect under these conditions, discontinue use.
c) Oil, dirt and fuel might cause a film to form on the transducer and reduce its effectiveness.
Cleaning the face of the sensor might help.
d) Electrical noise from the boat's motor can interferes with the sonar, which will cause some
weaker signals being eliminated.
e) Please check the battery voltage. The unit's transmitter power will decrease due to the voltage
drop. And this will reduce its ability to find the bottom or targets.
f)
The sonar might be in turbulent water. Mounting it in a smooth flow of water might help.
No depth readout when transducer is installed in the way “Shoot-thru-hull”.
Make certain the hull of the boat is single layer construction. Also any air trapped in the lamination
of the fiberglass would prevent the sonar signal passing through, which will cause no depth
readout.
Bottom disappears, suddenly weakens, when the boat moves at high speed
a) The sonar might be in turbulent water. See the installation guide and adjust the transducer
position to a smooth flow of water.
b) Electrical noise from the boat's motor can interferes with the sonar, which will cause some
weaker signals being eliminated. Try increasing the Noise Filter level or routing Fishfinder’s
power and the transducer cable away from the electrical source.
Nothing appears on the display even you can see fish under the transducer.
a) Check the transducer installation to make certain it is properly installed. An improper
installation may cause sonar signal
lost.
b) Oil, dirt and fuel might cause a film to form on the transducer and reduce its effectiveness.
Cleaning the surface of the transducer might help.
c) Electrical noise from the boat's motor can interferes with the sonar, which will cause some
weaker signals being eliminated.
The display become so cluttered that you even could not achieve a clear bottom
a) Such cluttered display maybe caused because:
a) The water is too low
b) The water is too turbid
c) There are so much debris in the water,
b) Increasing the Noise Reject to 8 or a bigger value will be helpful.
