Message
Possible cause
Remedy
0002 W
p2 ↑
Final pressure too high.
Check operating conditions.
Check all drainage lines, the
outlet silencer and blower air‐
end.
0003 W
dp ↑
Differential pressure too high.
Check operating conditions.
Check all supply lines, drain‐
age lines, inlet and outlet si‐
lencers and airend.
0004 W
T_S ↓
Ambient temperature too low.
Check ambient conditions.
0005 W
T1 ↑
Inlet temperature too high.
Check operating conditions.
Check all supply lines, inlet si‐
lencer and blower airend.
Check ambient conditions.
0006 W
T2 ↑
Blower airend discharge temperature
too high.
Check ambient conditions.
Check function of sound enclo‐
sure fan.
0007 W
dT ↑
T2/T1 temperature difference too high. Check operating conditions.
Check all supply lines, drain‐
age lines, inlet and outlet si‐
lencers and blower airend.
0008 W
Exchange mains
contactor
Maximum number of switching cycles
for mains contactor reached.
Contact an authorised service
partner.
0009 W
T_S ↑
Sound enclosure temperature too high. Check ambient conditions.
Check function of sound enclo‐
sure fan.
0010 W
Oil level side A
Lubricant level at blower airend drive-
end too low.
Replenish lubricating oil.
0011 W
Oil level side B
Lubricant level at blower airend control-
end too low.
Replenish lubricating oil.
0012 W
Filter blocked
Intake filter clogged.
Change intake filter.
0013 W
dp ↓
Differential pressure too low.
Check operating conditions.
Check all supply lines, drain‐
age lines, inlet and outlet si‐
lencers and blower airend.
0014 W
External message 1
1)
0015 W
Com-Module
communication error
Bus link via Com module interface in‐
terrupted.
Check bus lines and plug.
0016 W
T3 ↓
Oil temperature T3 too low
Check ambient conditions.
10 Fault Recognition and Rectification
10.3 Interpreting warning messages
No.: 901700 14 E
Service Manual Controller
SIGMA CONTROL 2 BLOWER ≥ 4.0.X
161
