Possible causes Possible solutions
Damaged cables
1. Check the unit’s connector for broken or bent pins.
2. Check that the cable connector is fully inserted into the unit and that the
locking collar is in the locked position.
3. Check the cable and connectors for signs of damage or corrosion, replace
if necessary.
4. With the unit turned on, try exing the power cable near to the display
connector to see if this causes the unit to re-boot/loose power, replace
if necessary.
5. Check the vessel’s battery voltage, the condition of the battery terminals
and power supply cables, ensuring connections are secure, clean and free
from corrosion, replace if necessary.
6. With the product under load, using a multi-meter, check for high voltage drop
across all connectors/fuses etc (this can cause the Sonar applications to
stop scrolling or the unit to reset/turn off), replace if necessary.
Vessel speed too high
Slow vessel speed and recheck.
Bottom too shallow or too deep
The bottom depth may be outside of the transducers depth range, move vessel to
shallower or deeper waters as relevant and recheck.
Poor / problematic image
Possible causes Possible solutions
Vessel stationary
Fish arches are not displayed if the vessel is stationary; sh will appear on the
display as straight lines.
Scrolling paused or speed set too low
Unpause or increase sonar scrolling speed.
Sensitivity settings may be inappropriate for
present conditions.
Check and adjust sensitivity settings or perform a Sonar reset.
Damaged cables
1. Check the unit’s connector for broken or bent pins.
2. Check that the cable connector is fully inserted into the unit and that the
locking collar is in the locked position.
3. Check the cable and connectors for signs of damage or corrosion, replace
if necessary.
4. With the unit turned on, try exing the power cable near to the display
connector to see if this causes the unit to re-boot/loose power, replace
if necessary.
5. Check the vessel’s battery voltage, the condition of the battery terminals
and power supply cables, ensuring connections are secure, clean and free
from corrosion, replace if necessary.
6. With the product under load, using a multi-meter, check for high voltage drop
across all connectors/fuses etc (this can cause the Sonar applications to
stop scrolling or the unit to reset/turn off), replace if necessary.
Transducer location
• Check that the transducer has been installed in accordance with the
instructions provided with the transducer.
• If a transom mount transducer is mounted too high on the transom it may
be lifting out of the water, check that the transducer face is fully submerged
when planing and turning.
Transducer kicked-up
If the transducer has a kick-up mechanism, check that it has not kicked up due to
hitting an object.
Damaged or fouled transducer Check the condition of the transducer ensuring it is not damaged and is free
from debris / fouling.
Damaged transducer cable
Check that the transducer cable and connection is free from damage and that
the connections are secure and free from corrosion.
Turbulence around the transducer at higher
speeds may affect transducer performance
Slow vessel speed and recheck.
Troubleshooting
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