Message
Possible cause
Remedy
0052 A
Aggregate B
Unit B failed
Contact an authorised service
partner.
0053 A
Condensate drain 2
Condensate drain 2 faulty / not
ready.
Too much condensate.
Line interrupted.
Condensate cannot be drained.
Check condensate drain and con‐
densate lines.
Check the inlet conditions.
Check the lines.
Check the ECO-DRAIN.
0056 A
RD condensate drain
Refrigeration dryer:
Condensate drain faulty
Refrigeration dryer:
Check condensate drain and con‐
densate lines.
0057 A
Model?
Machine type unclear.
Contact an authorised service
partner.
0058 A
Condensate drain 1
Condensate drain 1 faulty / not
ready.
Too much condensate.
Line interrupted.
Condensate cannot be drained.
Check condensate drain and con‐
densate lines.
Check the inlet conditions.
Check the lines.
Check the ECO-DRAIN.
0059 A
Back pressure run
Drive belt or coupling broken.
Drive belt:
Replace the drive belt.
Coupling:
Contact an authorised service
partner.
0060 A
Softstart
Soft start device alarm.
Contact an authorised service
partner.
0062 A
Refrigeration dryer p ⇞
Refrigeration dryer:
Pressure in refrigerant circuit high.
Pressure monitor triggered.
Clean the refrigerant condenser.
Check the fan motor.
Keep operating conditions within
specified limits.
0063 A
Refrigeration dryer p ⇟
Refrigeration dryer:
Refrigerant loss; pressure in re‐
frigerant circuit too low.
Pressure monitor triggered.
Contact an authorised service
partner.
0064 A
Refrigeration dryer
compressor motor
temperature ⇞
Permissible ambient temperatures
exceeded.
Condenser cooling insufficient.
Compressed air inlet temperature
too high.
Low refrigerant level.
Check and reduce ambient tem‐
peratures.
Clean the condenser.
Check the fan.
Check compressed air cooling at
the compressor.
Clean the compressor cooler.
Contact an authorised service
partner.
0067 A
SC2 <=> SC2
communication error
Electrical connection interrupted.
IP configuration incorrect.
Check the electrical connection.
Check the IP configuration.
0073 A
External message 1
1)
10 Fault Recognition and Rectification
10.2 Interpreting alarm messages
200
User Manual Controller
SIGMA CONTROL 2 SCREW FLUID ≥5.0.X
No.: 9_9450 12 E
