Possible cause Remedy Where can I get help?
SW KS
Venting valve does not close. Check the connections and
function and have repaired or
replaced as necessary.
– X
Engine does not run at maxi‐
mum speed (in
LOAD mode).
See chapter 9.2 X X
Engine air filter and/or compres‐
sor air filter clogged.
Clean or change, see chap‐
ters 10.3.2 and 10.4.7.
– –
Oil separator cartridge heavily
clogged.
Change, see chapter 10.4.6. – –
SW = specialised workshop; KS = KAESER SERVICE
Tab. 76 Fault: working pressure too low
9.3.3 Pressure relief valve blowing off
Possible cause Remedy Where can I get help?
SW KS
Oil separator cartridge heavily
clogged.
Change, see chapter 10.4.6. – –
Inlet valve does not close. 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
SW = specialised workshop; KS = KAESER SERVICE
Tab. 77 Fault: pressure relief valve blowing off
9.3.4 Machine overheating
Possible cause Remedy Where can I get help?
SW KS
Defective cooling fan. Have the blades or the complete
fan wheel replaced.
– X
Oil cooler surface clogged. Clean surface, see chap‐
ter 10.5.
– –
The working element of the ther‐
mostatic valve not workingl.
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
SW = specialised workshop; KS = KAESER SERVICE
9 Fault Recognition and Rectification
9.3 Analysing compressor faults and alarms
86
Operator manual Portable compressor
M 64 No.: 9_5898 26 E