9.3.3 Pressure relief valve blowing off
Possible cause
Remedy
Where can I get help?
Specialised
workshop
KAESER Ser‐
vice
Oil separator cartridge heavily
clogged.
Change, see chapter 10.4.5.
–
–
Inlet valve not closing.
Check the controller, the control
air line and the inlet valve and
replace if necessary.
–
X
Pressure relief valve maladjus‐
ted and/or leaking.
Adjust or have replaced if nec‐
essary.
–
X
Tab. 51 Fault: pressure relief valve blowing off
9.3.4 Machine overheating
Possible cause
Remedy
Where can I get help?
Specialised
workshop
KAESER Ser‐
vice
Defective cooling fan.
Have the blades or the complete
fan wheel replaced.
–
X
Oil cooler clogged.
Clean surface, see chap‐
ter 10.4.8.
–
–
Defective working element in the
combination valve.
Have repaired or replaced if
necessary.
–
X
Working pressure too high (pro‐
portional controller maladjus‐
ted).
Reset to the permissible value
or have replaced.
–
X
Oil separator cartridge heavily
clogged.
Measure the pressure differen‐
tial and change the cartridge if
greater than 1 bar (see chap‐
ter 10.4.5).
–
X
Compressor oil filter clogged.
Change, see chapter 10.4.4.
–
–
Compressor oil level too low.
Top up (see chapter 10.4.2).
–
–
Oil pipes leaking.
Seal leaks or have pipes
changed.
X
X
Engine cooling system or cool‐
ing fan defective.
Have repaired.
X
X
Ambient temperature too high.
See installation conditions in
chapter 5.2.
–
–
Tab. 52 Fault: machine overheating
9
Fault Recognition and Rectification
9.3
Compressor faults and alarms
No.: 9_9432 02 E
Service Manual Screw Compressor
M43
65
RAMIRENT
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