Product Manual

ENGLISH
Cod. 9828093309 00 - Edition 05/2019 - 25
19.0 TROUBLE-SHOOTING AND EMERGENCY REMEDIES
N.B. OPERATIONS MARKED ◼ ◼ MUST BE CARRIED OUT BY PROFESSIONALLY SKILLED PERSONNEL
APPROVED THE MANUFACTURER
ALL WORK MUST BE CARRIED OUT BY PROFESSIONALLY SKILLED PERSONNEL. BEFORE CARRYNG OUT
ANY MAINTENANCE JOBS IT IS OBLIGATORY TO STOP THE MACHINE AND DISCONNECT IT FROM THE
POWER MAINS.
19.1 TROUBLE-SHOOTING AND EMERGENCY REMEDIES FOR SCREW COMPRESSOR
FAULT FOUND
POSSIBLE CAUSES
OBSERVATIONS
1) The machine does not start
1A - no powert
1B - the transformer protection fuse is
broken
- check the power supply line,
Chapter 12.2
- replace fuse
2) The machine does not start
2A - the thermal protection in the main
engine has triggered
- To rearm, turn the isolation switch
to “OFF” / “ON”.
3) The machine does not start
3A - the oil-overheating thermostat
has triggered.
- environment temperature too high;
improve ventilation in the
compressor room, Chapter 9.2
◼ ◼ - cooling radiator is dirty, clean the
radiator
- oil level too low; top up the oil tank
4) The compressor does not reach
working pressure
4A - the compressed air consumption
is
too high
4B - the discharge electrovalve
remains open, Ref. EV/SC wiring
diagram
◼ ◼ - check the electric system
5) Excess oil consumption
5A - deteriorated oil separating filter
oil level is too high
◼ ◼ - change the oil separating filter,
Chapter 23