Alarm:
WATER IN FUEL
Maintenance
Required
Indicates an obstruction in the fuel filter. At the same time the alarm
buzzer of the panel turns on. The reason for which the indicator light
turns on can be:
- Water presence in the engine fuel filter.
- Malfunction of the water in fuel sensor
Check and drain the fuel filter. If the problem persists, make a diagnosis
by an authorized FNM
®
service point.
Alarm:
HIGH BOOST
PRESSURE
Indicates excessive pressure of the turbocharger to the engine (greater
than 3 bar). Lower the position of the throttle to bring it up gradually to 0
and turn off the engine. If the problem persists when turned on, keep low
RPM without accelerating excessively and make the engine be checked
by an authorized FNM
®
service point.
Alarm:
REV LIMIT
EXCEEDED
CRITICAL
Indicates a rotation speed of the engine too high, higher than 4500 rpm.
Lower the position of the throttle to bring it up gradually to 0 and turn off
the engine. If the engine does not turn off, act on the emergency red
button located on the control box.
If the problem recurs, make the engine be checked by an authorized
FNM
®
service point.
Alarm:
HIGH ENGINE
TEMP! CRITICAL
Indicates overheating of the engine, above 100 ° C. At the same time the
alarm buzzer of the panel turns on. Turn off the engine immediately and
check if the sea water filter is clogged, the sea water valve is opened and
the coolant is sufficient. Also check the cooling system and any losses,
verify that the impeller of the sea water pump is in good condition: Bleed
air from the cooling system and check the connection of the sensor to
the electrical wiring.
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