Event Recognition and Fault Rectification
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Message RemedyPossible cause
motorstarts /h
The permissible number of
motor starts was exceeded
during the last 60 minutes.
Extend the idle period.
Increase capacity of air re-
ceiver.
Increase cross–section of
piping between compressor
and air receiver.
motorstarts /d
The permissible number of
motor starts was exceeded
during the last 24 hours.
Extend the idle period.
Increase capacity of air re-
ceiver.
Increase cross–section of
piping between compressor
and air receiver.
motor bearings h
The service interval for the
motor bearing change has
expired.
Have an authorized
KAESER technician replace
the motor bearings.
Neutral p–switch Customer specific:
No data
Neutral T–switch Customer specific:
No data
no press.buildup The compressor cannot
build–up to working pres-
sure.
Check for air leaks.
Check the value for internal
pressure given in the ”ana-
log data” menu with the re-
ading on the oil separator
tank pressure gauge.
oil filter dp
Oil filter clogged. Oil filter replacement
oil filter h
The interval for the next oil
filter check has expired.
Oil filter replacement
oil level
Oil level too low. Top up the cooling oil.
oil T
Cooling oil temperature too
low.
Increase room temperature.
Check the oil circuit.
Check temperature switch,
line and connection.
oil change h
The service interval for the
oil change has expired.
Change the cooling oil.
oil content
Warning
The oil content limit for pure
air will soon be reached.
Check the scavenge tube in
the oil separator cartridge.
Check the dirt trap strainer
in the scavenge line.
Check air treatment up-
stream of the measurement.
oil content
The oil content limit for pure
air has been exceeded.
Check the scavenge tube in
the oil separator cartridge.
Check the dirt trap strainer
in the scavenge line.
Check air treatment up-
stream of the measurement.
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