CompAir L11 Service Manual

10. Trouble-shooting
52
Malfunction
Possible cause
Remedy
Unit switches off
1.
Ambient temperature too high
1.
Ventilate compressor room
2.
Electric motor defective
2.
Check electric motor and thermistor
3.
Fan defective
3.
Check/replace fan
4.
Cross section of the electric supply
lines too small
4.
Measure power requirement,
if necessary, replace lines
5.
Power requirement too high
5.
Oil fine separator clogged,
replace, if necessary
6.
Oil level too low
6.
Top up oil in the pressure reservoir
7.
Oil injection pressure too low
7.
Replace oil filter cartridge,
clean oil system
8.
Excessive oil temperature
8.
Check oil cooler and fan/
Check oil thermostat
1.
Intake regulator does not close correctly
1.
Check intake regulator
Excessive idling
pressure
2.
System not unloaded
2.
Check intake regulator
Oil in the compressed air
1.
Oil fine separator defective
1.
Replace oil fine separator cartridge
2.
Oil foams
2.
Change oil
3.
Oil level too high
3.
Drain off oil
4.
Minimum pressure valve defective
4.
Check minimum pressure valve
Oil in the air filter
1.
Intake regulator setback function
defective
1.
Check intake regulator
2.
Intake regulator does not close correctly
2.
Check intake regulator
3.
Frequent emergency shutdown
3.
The emergency shutdown may only be
activated in the case of safety-relevant
functional problems
Safety valve opens
1.
Safety valve defective
1.
Replace
2.
Oil fine separator clogged and final
compression pressure sensor defective
2.
Replace oil fine separator cartridge and
change final compression pressure
sensor
3.
Intake regulator closes too slowly
3.
Check intake regulator and solenoid
valve
4.
Mains pressure sensor defective
4.
Replace mains pressure sensor
5.
Electronics defective
5.
Replace electronics
Danger
Never operate the screw compressor with defective safety valve!

CompAir L11 Specifications

General

Brand	CompAir
Model	L11
Category	Air Compressor
Language	English