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Possible cause
Remedy
Where can I get help?
SW
KS
Oil pressure switch indicating in‐
sufficient oil pressure.
Check the engine oil level (see
–
–
Have the engine repaired or ex‐
changed.
X
–
SW = Specialized workshop; KS = KAESER SERVICE
Tab. 80 Fault: engine refuses to start or comes to a stop
9.3.2 Engine does not reach full speed
Possible cause
Remedy
Where can I get help?
SW
KS
Airlock in the fuel line between
fuel tank and injector pump.
Bleed the fuel line (see chapter
–
–
Fuel filter clogged.
Clean or replace, see chapter
–
–
Fuel line broken.
Have it changed.
X
–
Engine electrical fault.
Have it repaired/changed.
X
–
SIGMA CONTROL SMART de‐
fective.
Have it repaired/changed.
–
X
SW = Specialized workshop; KS = KAESER SERVICE
Tab. 81 Alarm: "engine does not reach full speed"
9.4 Analysing compressor faults and alarms
9.4.1 Working pressure too high
Possible cause
Measure
Where can I get help?
SW
KS
Proportional controller defective. Have repaired or replaced if
necessary.
–
X
Inlet valve does not close.
Check the controller, control line
and inlet valve and replace if
necessary.
–
X
Pressure gauge indicating incor‐
rect reading.
Have it repaired or replaced if
necessary.
–
X
Venting valve does not blow off. Check the connections and
function and have it repaired or
replaced as necessary.
–
X
SW = Specialised workshop; KS = KAESER SERVICE
Tab. 82 Fault: working pressure too high
9
Fault Recognition and Rectification
9.4
Analysing compressor faults and alarms
No.: 901783 08 USE
Operator Manual Portable Rotary Screw Compressor
MOBILAIR M82 SIGMA CONTROL SMART
105