Message Possible cause Remedy
0046 W
System pressure ↓
Network pressure has
fallen below the set
“system pressure low”
value.
Air consumption too
high.
Check air demand.
Check cable runs and sensor
connections.
Check the 'system pressure
low' warning value.
0047 W
No pressure 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 against the
reading on the oil separator
tank pressure gauge.
0048 W
Bearing lube h ⇞
Re-grease the motor
bearings.
Maintenance interval
has elapsed.
Re-grease the motor bear‐
ings.
0049 W
Annual maintenance
Last maintenance was
1 year ago.
Carry out the necessary
maintenance and reset the
corresponding maintenance
interval counter.
0059 W
Start temperature ↓↓
The airend temperature
is too low (< 14°F) for
the machine to be oper‐
ated.
Keep ambient conditions
within specified limits.
0060 W
Start temperature ↓
The airend temperature
is too low (< 35°F).
Keep ambient conditions
within specified limits.
0061 W
Compressor T ↓
The airend discharge
temperature (ADT) did
not reach the minimum
value within the speci‐
fied time.
Contact KAESER Service.
0066 W
Air filter Δp ⇡
Initial warning:
Air filter clogged.
Change the air filter element
soon.
0068 W
Condensate drain
The condensate drain is
defective.
Check the condensate drain
and drain line.
0069 W
Error operation without RD → Call
service!
Refrigerated dryer de‐
fective.
Compressed air supply
with undried air is acti‐
vated.
Immediately contact KAESER
service.
0070 W
Refrigeration dryer T ↑
Refrigerated dryer:
Compressed air temper‐
ature too high.
Maintain operating condi‐
tions.
Clean the refrigerant liquefier.
Clean the cooler.
Install an extractor fan.
0071 W
Oil level ↓
Cooling oil level too low. Replenish the cooling oil.
9 Fault Recognition and Rectification
9.5 Interpreting warning messages
9_9450 03USE
Service manual Controller
SIGMA CONTROL 2 SCREW FLUID 1.1.3
165
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