14.4 Sonar / DownVision troubleshooting
Problems with the Sonar or DownVision and their possible causes and solutions are described here.
Problem
Possible causes
Possible solutions
Unit power supply fault.
Check the unit power supply and cables.
Sonar / DownVision data not available.
Sonar disabled.
Select
Enable Sonar
from the Shortcuts page.
Sensitivity settings may be inappropriate
for present conditions.
Check the Sensitivity settings.
Unit power supply fault
Check the voltage from the power supply, if this is too low it can affect
the transmitting power of the unit.
Unit cable fault.
Ensure that the power / transducer cable is properly connected and
free from damage.
Check that the transducer has been installed in accordance with the
transducer location requirements (refer to the
Location and Mounting
section of the manual).
Transducer location
The presence of thin lines at a constant depth may be a reflection of
structures on the bottom of the vessel check that the transducer has
been installed in accordance with the transducer location requirements
(refer to the
Location and Mounting
section of the manual).
Check that the transducer is mounted correctly and is clean.
Transducer fault
Check that the transducer hasn't kicked up due to hitting an object.
High vessel speed
Turbulence around the transducer may be confusing the unit.
Problematic depth readings or
on-screen image.
Scroll speed set to zero
Adjust scroll speed
Troubleshooting
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