Message
Possible cause
Remedy
0059 W
Start temperature ↓↓
Airend temperature too low (<−10 °C) for
machine to be operated.
Keep ambient conditions
within specified limits.
0060 W
Start temperature ↓
Airend temperature too low (<+2 °C).
Keep ambient conditions
within specified limits.
0061 W
Compressor T ↓
Airend discharge temperature (ADT) did
not reach minimum required value within
the specified time.
Contact an authorised serv‐
ice partner.
0062 W
Refrigeration dryer p ⇞
Refrigeration dryer:
Pressure in refrigerant circuit too high.
Safety pressure switch triggered
Clean the refrigerant con‐
denser.
Check the fan motor.
Keep operating conditions
within specified limits.
0063 W
Refrigeration dryer p ⇟
Refrigeration dryer:
Refrigerant loss; pressure in refrigerant
circuit too low. Inlet pressure switch trig‐
gered.
Contact an authorised serv‐
ice partner.
0064 W
Refrigeration dryer
compressor motor
temperature ⇞
Permissible ambient temperatures excee‐
ded.
Condenser cooling insufficient
Compressed air inlet temperature too
high.
Low refrigerant level.
Check and reduce ambient
temperatures.
Clean the condenser.
Check the fan.
Check compressed air cool‐
ing on the compressor.
Clean the compressor cooler.
Contact an authorised serv‐
ice partner.
0065 W
Refrigeration dryer
external shut-off
Room temperature low.
Danger of refrigeration dryer freezing.
Refrigeration dryer deactivated automati‐
cally.
Keep ambient conditions
within specified limits.
Check temperature sensor.
0067 W
System pressure ↑
Network pressure above the “network
pressure high” setting.
Check line paths and sensor
connection.
Check the “network pressure
high” warning setting.
0068 W
Condensate drain 1
Condensate drain faulty / not ready.
Too much condensate.
Line interrupted.
Condensate cannot be drained.
Check condensate drain and
condensate lines.
Check the lines.
Check the ECO-DRAIN.
Check the inlet conditions.
0069 W
Error operation without
RD → Call service!
Refrigeration dryer defective.
Compressed air supply without air drying
is activated.
Contact an authorised serv‐
ice partner immediately.
10 Fault Recognition and Rectification
10.3 Interpreting warning messages
210
User Manual Controller
SIGMA CONTROL 2 SCREW FLUID ≥5.0.X
No.: 9_9450 12 E