Troubleshooting - Schneider Airsystems Air Master Serie Manual De Instrucciones

Problem
Motor stop due to circuit
breaker relay intervention
High oil consumption
Oil leak from suction filter
Opening of safety valve
Compressor temperature
thermostat intervention: the
machine blocks
The compressor ha slow
performance
The compressor is running
but does not compress air
The compressor continues
to compress air above the
max. pressure
Difficult start-up
Oil presence in the cab

TROUBLESHOOTING

Cause
Voltage too low
Motor over-temperature
Faulty drainage
Oil level too high
Oil-separator filter broken
Bad sealing of the oil-
separator nipple
The suction adjuster does
not close
Pressure too high
The suction adjuster does
not close at cycle end
Oil-separator filter blocked
Environmental temperature
too high
Radiator blocked
Oil level too low
The electrovalve does not
start-up
Air filter dirty or blocked
The adjuster is closed, it
does not open because it is
dirty or has no command
The adjuster is open, it does
not close because it is dirty
or has no command
Malfunctioning of the
pressure transducer
The voltage is too low
Leaks from the pipes
Leak from the screw unit
front flange
Solution
Check the voltage, press Reset and re-set
Check motor absorption and check relay calibration. If
absorption is normal press reset and re-start
Check the oil drainage pipe and the non-return valve
Check the oil level and discharge if necessary
Replace the oil-separator filter
Replace the oil-separator nipple seal
Check functioning of the adjuster and the electrovalve
Check calibration of the pressure transducer
Check functioning of the adjuster and the electrovalve
Check the difference between the line pressure and the oil-
separator tank. Replace the oil-separator filter if necessary.
Increase ventilation
Clean the radiator using solvent
Add oil
Check the command relay and the motor of the fan motor.
Clean or replace the filter
Remove the suction filter and check if the adjuster opens
manually. If necessary, disassemble and clean.
Check the presence of the signal between the pressure
gauge and electrovalve. Replace any damaged parts
Disassemble and replace the adjuster
Check the presence of the signal between the pressure
gauge and electrovalve. Replace any damaged parts
Replace the transducer
Control network voltage
Tighten connections and/or replace damaged pipes
Replace the sealing rings
GB
17 17
17 17 17