Sonar troubleshooting

Sonar disabled

Select Ping Enable from the Sonar app’s Sounder menu.

Incorrect transducer selected

Check that the correct transducer is selected in the Sonar app’s Transducer menu.

Damaged cables

1. Check that the transducer cable connector is fully inserted and locked in position.

2. Check the power supply cable and connectors for signs of damage or corrosion, replace if necessary.

3. With the unit turned on, try flexing the cable near to the display connector to see if this causes the unit to restart or lose power. Replace if necessary.

4. 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.

5. 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 or switch off). Replace if necessary.

Damaged or fouled transducer

Check the condition of the transducer, ensuring that it is not damaged and is free from debris / fouling. Clean or replace as necessary.

Wrong transducer fitted

Ensure that he transducer is compatible with your system.

External sonar module: / RayNet network problem.

• Check that the unit is correctly connected to the multifunction display or Raymarine network switch. If a crossover coupler or other coupler cable / adapter is used, check all connections, ensuring that they are secure, clean, and free from corrosion. Replace if necessary.

External sonar module: Software mismatch between equipment may prevent communication.

Ensure that all Raymarine products contain the latest available software. Check the Raymarine website for software version information: https://bit.ly/rym-software

Transducer location

Check that the transducer has been installed in accordance with the instructions provided with the transducer.

Transducer angle

If the transducer angle is too great, the beam can miss the bottom. Adjust the transducer angle and re-check.

Transducer kicked-up

If the transducer has a kick-up mechanism, check that it has not kicked up due to hitting an object.

Power source insufficient

With the product under load, using a multi-meter, check the power supply voltage as close to the unit as possible to establish actual voltage when the current is flowing. (Check your product’s Technical specification for power supply requirements.)

Damaged or fouled transducer

Check the condition of the transducer, ensuring that it is not damaged and is free from debris / fouling.

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 switched on, try flexing the power cable near to the display connector to see if this causes the unit to restart or lose power. Replace if necessary.

5. Check the vessel’s battery voltage, the condition of the battery terminals and power supply cables, ensuring that 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. (Voltage drops can cause the Sonar applications to stop scrolling or the unit to reset or switch off.) Replace if necessary.

Vessel speed too high

Slow the vessel speed and re-check.

Bottom too shallow or too deep

The bottom depth may be outside of the transducer’s depth range. Move vessel to shallower or deeper waters as relevant, and re-check.

Vessel stationary

Fish arches are not displayed if the vessel is stationary; fish 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 switched on, try flexing the power cable near to the display connector to see if this causes the unit to restart or lose power. Replace if necessary.

5. Check the vessel’s battery voltage, the condition of the battery terminals and power supply cables, ensuring that 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. (Voltage drops can cause the Sonar applications to stop scrolling or the unit to reset or switch 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 that 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 the vessel speed and recheck.

Interference from another transducer

1. Switch off the transducer causing the interference.

2. Re-position the transducers so that they are further apart.

Unit power supply fault

Check the voltage from the power supply, if this is too low it can affect the unit’s transmitting power.