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OPERATION AND INSTALLATION MANUAL
COD. 091114 – COMPACK 2 ECO / SPECIAL - REV. 08 - DATE 10/2020
page
60
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63
11
TROUBLESHOOTING
Problem
Cause
Resolution
High oil
temperature limit
trips causing
machine to stop.
Low oil level,
High environmental temperature
Oil cooler clogged
Temperature probe failure
Top up oil level
Check environmental temperature
Clean oil cooler
Replace temperature probe.
Motor thermal trip
causes machine to
stop.
Main motor
overloaded
.
Low line voltage.
High pressure of the oil separator.
Check the correct calibration of the
thermal protection.
Check that the electric power
supply is correct.
Check that power cables are firmly
secured to the terminal.
Check that the cables are not
damaged.
Check the main motor ventilation is
free of any fouling or foreign
objects.
The oil separator differential
pressure is above 1.0 bar causing
high system absorption.
Check the unit by qualified
personnel.
Stopping the machine
for intervention of the
high pressure safety
The pressure exceeds the alarm set
point.
Transducer does not detect pressure
properly.
Check the line pressure
Check for proper operation of the
transducer, if necessary replace it.
Stopping the
machine because
of the low
temperature
Oil temperature lower than the
value set on the electronic
controller.
Temperature probe faulty.
Check the environmental
temperature and, if necessary,
Use a heating resistance on the oil
circuit.
Contact an authorized Service
Centre.
Compressor runs
but does not
charge.
Suction valve does not open.
Auxiliary power disconnected.
Solenoid valve fuse blown.
Breaking transmission elements
between the motor and the screw.
Check that the transducer is connected
both electrically and pneumatically.
Check that the solenoid valve installed
on the
suction regulator is functioning
properly.
Check valve or minimum pressure
valve failure. Contact an Authorized
Service Centre.
Check the fuses for the solenoid
valve installed on the terminal inside
the starter itself.
Check and replace the elements of
transmission failures.