Troubleshooting - Schneider Airsystems AirMaster AM 11-8 E1 Notice D'utilisation D'origine

26 TROUBLESHOOTING

NOTE:
a) All operations must be carried out exclusively by suitably trained technical
personnel or by a service centre !!!
b) before attempting any operation take all the due safety precautions as stated
in the "MAINTENANCE" chapter.
Problem
THE COMPRESSOR FAILS
TO START
LOW AIR DELIVERY
No power supply
Compressor stopped due to
overheating
Electrical fault
Over-loaded motor
Compressor stopped due to
too high pressure
Doesn't start, although the
"Start" button has been
pressed
Air filter clogged
Oil separator clogged
Intake valve faulty
2-23
Possible cause and repair
- check fuses and voltage
- check that the protection devices of the
voltage supply (safety switch, fault current
protection or fuses) are suitable to be used
as protection of the frequency converter.
Contact the sales advisor.
Find out the possible cause of overheating
- oil-mixing valve or sensor faulty
- recirculation of hot cooling air
- cooling air volume insufficient
- ambient temperature too high
- cooler clogged
- wrong oil type or oil level too low
- oil separator clogged
- oil filter blocked
- check the main switch
- check the motor wiring and the frequency
wiring converter as well as the tightness of
the cable connectors.
- check that the maximum pressure is not
exceeding
- check the inlet temperature and flow of the
cooling air
- check the oil level
- check the pressure drop of the separator
- check that the shut-off valve between
compressor and compressed air system is
open
- aftercooler is frozen
- pressure sensor faulty
- line filters clogged
- wait (network pressure exceeds the
adjusted pressure)
- replace the air filter
- replace the oil separator
- repair or replace