R750EU5 - IE3 - TE4 - IE4 - ISE4
English 57 Ed.8 / 10-2012
GB
INFORMATION ABOUT FAILURES
TROUBLESHOOTING
The information below are provided to
facilitate the identication and solution
of possible anomalies and failures which
may occur during operation. Some of
these problems can be solved by the user,
while others require specic technical
skills or abilities, therefore they should be
exclusively dealt with by qualied tech-
nicians with extensive experience in the
specic sector of intervention.
Activation of a visual and/or acoustic
signal indicates some form of malfun-
ction. In this case, turn the engine off
immediately and consult the documen-
tation supplied by the manufacturer of
the vehicle/device in which the engine
is installed.
Problem Cause Remedy
During the ignition phase the
control board and the engine do
not start.
Flat battery Recharge or replace battery
Blown fuse Replace fuse
The electric cables are
disconnected or they do not
guarantee continuity
Check the electric connections
Failure of engine revolution
sensor
Replace the sensor
Apply to an authorised workshop
The engine does not start
Presence of air in the fuel supply
circuit
Carry out bleeding (See “Fuel
supply circuit bleeding”)
Dirty or faulty injectors
Replace the injectors
Apply to an authorised workshop
faulty fuel pressure regulation
valve
Replace the valve
Apply to an authorised workshop
Failure of the start control
Replace the start control
Apply to an authorised workshop
water and/or impurities in the fuel Apply to an authorised workshop
Clogged fuel lter
Replace lter (See “Fuel lter
replacement.”)
The starter motor runs idle
Electromagnet failure
Check the starter motor
Apply to an authorised workshop
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