Message Possible cause Remedy
0005 A
Oil separator Temperature ⇞
Maximum air temperature at
the oil separator tank outlet
is exceeded.
Check the line to the
trip relay.
0007 A
Power supply monitor
Fault in main power supply. Have the main power
supply checked.
0008 A
Diagnostics group alarm
A diagnostic message has
occurred.
For more details, see
the text of the diag‐
nostic message.
0009 A
SIGMA CONTROL 2 T⇞
Permissible enclosure tem‐
perature for
SIGMA CONTROL 2 ex‐
ceeded.
Keep ambient condi‐
tions within specified
limits.
Control cabinet:
Check filter mats and
fan.
0010 A
Blow-off protection ⇞
The activating pressure of
the safety relief valve on the
oil separator tank has been
exceeded.
Change the oil sepa‐
rator cartridge.
Open the shut-off
valve in the venting
line.
0011 A
Oil-/air cooler fan Overcurrent
Overload shut-down of the
first fan motor.
Investigate cause of
shut-down.
Reset the overload
relay.
0012 A
Access doors
Door open / interlocked
panel removed while the
machine is running.
Fit and secure all
panels and close ac‐
cess doors.
0013 A
Compressor motor overcurrent
Overload shut-down of the
compressor drive motor.
Investigate cause of
shut-down.
Change the oil sepa‐
rator cartridge.
0014 A
Oil-/air cooler fan Overcurrent
Overload shut-down of the
second fan motor.
Investigate cause of
shut-down.
Reset the overload
relay.
0015 A
Airend discharge temperature ADT ⇞
Maximum permissible air‐
end discharge temperature
(ADT) exceeded.
Keep ambient condi‐
tions within specified
limits.
Clean the cooler.
Check the cooling oil
level.
0016 A
Oil-/air cooler fan Overcurrent
Overload shut-down of the
third fan motor.
Investigate cause of
shut-down.
Reset the overload
relay.
0019 A
Internal pressure pi ⇟
– –
9 Fault Recognition and Rectification
9.2 Interpreting alarm messages
158
Service manual Controller
SIGMA CONTROL 2 SCREW FLUID 1.1.3 9_9450 03USE
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