7 error messages – Furuno CSH-8L User Manual
Page 76

8. MAINTENANCE, TROUBLESHOOTING
8-6
8.7 Error
Messages
The table below shows the error messages which may appear on the display. All 
error messages are accompanied by the audio alarm, which you may silence 
with the [R/B] key. 
Error messages
Message Meaning,
Remedy
Overvoltage 
OVERVOLTAGE 
RETRACT TRANSDUCER AND TURN OFF 
POWER. PRESS [R/B] KEY TO CLEAR 
ALARM. 
Excessive voltage detected. The message 
flashes and the audio alarm sounds. Retract 
the transducer and then turn off the power. 
Press the [R/B] key to silence the audio 
alarm. Have a technician check the set. 
Transducer not retracted 
TRANSDUCER NOT RETRACTED 
CUT OFF POWER LINE TO PROCESSOR 
AND POWER SUPPLY. PRESS [R/B] KEY TO 
CLEAR ALARM. 
If the transducer is not retracted into the 
tank in approx. 35 seconds after the [↑] key 
is pressed, the message flashes and the 
audio alarm sounds. Press the [R/B] key to 
silence the audio alarm. Raise the 
transducer manually, following paragraph 
8.3.2. 
High speed 
WARNING 
MAX ALLOWABLE SPEED FOR EXTENDED 
TRANSDUCER IS 16 KT. MAX ALLOWABLE 
SPEED DURING RAISING/LOWERING 
TRANSDUCER IS 16 KT. PRESS [R/B] KEY 
TO CLEAR ALARM. 
Ship’s speed is higher than 16 knots when 
you attempted to lower or retract the 
transducer. The message flashes and the 
audio alarm sounds. Press the [R/B] key to 
silence the audio alarm. Reduced speed to 
less than 16 knots, and the previously used 
display appears. 
If you attempt to lower the transducer when 
the speed is higher than 16 knots the 
message flashes and the audio alarm 
sounds. (The transducer is neither raised 
nor lowered.) 
WARNING 
TRANSDUCER IS KEPT EXTENDED 
REDUCE SHIP'S SPEED AND PRESS ↑ TO 
RETRACT TRANSDUCER. ACTIVATING 
AUTOMATIC RETRACTION. PRESS [R/B] 
KEY TO 
CLEAR MESSAGE.
Ship’s speed is higher than 18 knots with 
the transducer extended. The message 
flashes and the audio alarm sounds. Press 
the [R/B] key to silence the audio alarm. 
Lower speed below 18 knots, and the 
previously used display appears. 
Automatic retraction
ACTIVATING AUTOMATIC RETRACTION 
PRESS [R/B] KEY TO CLEAR MESSAGE. 
Transducer is being retracted because ship 
speed set for automatic retraction has been 
reached. (The message appears if AUTO 
RETRACT in the SYSTEM menu is turned 
on.) Press the [R/B] key to clear the 
message. 
