Other Faults; Tab. 39 Other Faults And Remedies - KAESER AIRTOWER 3C Operator's Manual

9.4
Tab. 39
9_6917 34 USE
9 Fault Recognition and Rectification
9.4

Other faults

Other faults
Fault
Machine runs but produces no
compressed air.
Cooling oil runs out of the in‐
take filter.
Compressor switches be‐
tween LOAD and IDLE more
than twice per minute.
Cooling oil leaking into the ma‐
chine interior.
Cooling oil consumption too
high.
Other faults and remedies
Operator Manual Screw Compressor
AIRTOWER 3C–7.5C Tri-Voltage
Possible cause
Inlet valve not opening or only
opening partially.
Venting valve not closing.
Leaks in the pressure system.
Air demand is greater than the
capacity of the compressor.
Hose coupling or maintenance
hose still plugged into the
quick-release coupling on the
oil separator tank.
Oil level in the oil separator
tank too high.
Inlet valve defective.
Receiver too small.
Airflow into the compressed air
network restricted.
The differential between cut-in
and cut-out pressure too is
small.
Hose coupling or maintenance
hose still plugged into the
quick-release coupling on the
oil separator tank.
Oil cooler leaking.
Leaking pipe joints.
Unsuitable oil is being used.
Oil separator cartridge split.
Oil level in the oil separator
tank too high.
Oil return line dirty.
Remedy
Call an authorized KAESER
service representative.
Call an authorized KAESER
service representative.
Check pipework and connec‐
tions for leaks and tighten any
loose connections.
Check the air system for leaks.
Shut down consumer(s).
Remove coupling or mainte‐
nance hose.
Drain off oil until the correct lev‐
el is reached.
Call an authorized KAESER
service representative.
Increase size of receiver.
Increase air pipe diameters.
Check filter elements.
Check switching differential.
Remove coupling or mainte‐
nance hose.
Call an authorized
KAESER service representa‐
tive.
Tighten pipe joints.
Replace seals.
Change to SIGMA FLUID cool‐
ing oil.
Change the oil separator car‐
tridge.
Drain off oil until the correct lev‐
el is reached.
Check the dirt trap strainer in
the oil return line.
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