Furuno CH-250 manual Error Messages, Message Meaning, Remedy Hull Unit

6.7 Error Messages

The table below shows the error messages which may appear on the display. All error messages are accompanied by an audio alarm, which you may silence with the [R/B] key.

	Message	Meaning, Remedy
Hull Unit
HULL UNIT		Hull unit is not powered. Silence the audio alarm
POWER OFF		with the [R/B] key, and then turn on the hull unit
(CHECK BREAKER AND FUSE.)		to erase the message and restore normal
PRESS R/B KEY TO SILENCE ALARM.		operation.
RAISE/LOWER FUNCTION HAS NOT BEEN		You attempted to raise or lower the transducer
COMPLETED.		when the ship’s speed is above 15 knots or the
CHECK IF THE BREAKER AT THE HULL UNIT		breaker on the hull unit tripped. Check the
HAS BEEN ACTIVATED.		breaker and lower the ship’s speed below 15
MAXIMUM ALLOWABLE SPEED IS 15 KNOTS		knots to execute function desired.
WHILE SOUNDOME IS BEING RETRACTED.
PRESS R/B KEY TO SILENCE ALARM.
Frequency Code Error
FREQUENCY CODE ERROR		CPU does not receive frequency flag from
(CHECK TRANSCEIVER UNIT.)		transducer. Silence the audio alarm with the
PRESS R/B KEY TO SILENCE ALARM.		[R/B] key, and then check the transceiver unit.
Train Error
TRAIN NG		CPU does not receive heading signal. Check
		source of heading signal.
Excessive Speed
SHIPS SPEED EXCEEDS 15 kt.		See page 5-11 for details.
(SLOW DOWN UNDER 15 kt WHEN MOVING
TRANSDUCER.)
PRESS R/B KEY TO SILENCE ALARM.
TRANSDUCER REMAINS LOWERED.
(REDUCE SHIP'S SPEED AND PRESS ↑ TO
RETRACT IT.)
PRESS R/B KEY TO SILENCE ALARM.

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