Raymarine LIGHTHOUSE 4, Operation Instructions Manual

Page: 461 / 504

Possible causes Possible solutions
External sonar
module: SeaTalkhs
/ RayNet network
problem. • Check that the unit is correctly connected to the
Display or network switch. Check all connections
ensuring connections are secure, clean and free
from corrosion, replace if necessary.
External sonar
module: Software
mismatch between
equipment
may prevent
communication. Ensure all Raymarine products contain the latest
available software, check the Raymarine website:
www.raymarine.com/software for software
compatibility.
No depth reading / lost bottom lock
Possible causes Possible solutions
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 transducer angle and
recheck.
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 transducer condition, ensuring it is not
damaged and is free from debris/fouling. If
necessary, clean or replace your transducer.
After cleaning or replacement coat the transducer
using a water-based anti-fouling paint.
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 flexing the power
cable near to the display connector to see
if this causes the unit to re-boot/lose 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
Fishfinder 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.
Ping depth limit set If using a transducer with greater than 600 W
power, check if the
[Ping depth limit] has been
enabled: [Menu > Settings > Transducer > Ping
depth limit] .
If you are in water deeper than the specified [Ping
depth limit] then the transducer may not provide
depth readings.
Disable or adjust setting and retry.
Troubleshooting
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