Fault Possible cause Remedy
Cooling oil runs out of the air fil‐
ter.
Oil level in the oil separator
tank too high.
Drain off oil until the correct lev‐
el is reached.
Inlet valve defective. Call authorized KAESER Serv‐
ice representative.
Compressor switches between
LOAD and IDLE more than
twice per minute.
Air receiver too small. Increase size of air receiver.
Airflow into the compressed air
network restricted.
Increase air pipe diameters.
Check filter elements.
The differential between cut-in
and cut-out pressure too is
small.
Check switching differential.
Cooling oil leaking into the floor
pan.
Hose coupling or maintenance
hose still plugged into the
quick-release coupling on the
oil separator tank.
Remove coupling or mainte‐
nance hose.
Oil cooler leaking. Call authorized KAESER Serv‐
ice representative.
Leaking joints. Tighten joints.
Replace seals.
Cooling oil consumption too
high.
Unsuitable oil is being used. Use SIGMA FLUID cooling oil.
Oil separator cartridge split. Change the oil separator car‐
tridge.
Oil level in the oil separator
tank too high.
Drain off oil until the correct lev‐
el is reached.
Oil return line clogged. Check dirt trap in the return
line.
Tab. 34 Other faults and actions
9 Fault Recognition and Rectification
9.2 Other Faults
9_5875 33 USE
Operator Manual Screw Compressor
SM Tri-Voltage, SIGMA CONTROL 2
53
To Next Page
Loading...
Need help?
General
