11 | Troubleshooting
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0870139163_MM1104BP,MM1144BP,MM1102BP,MM1142BP_A0001_IM_en
SCH
Mink
BU
IS
CPL
SV
Problem
Possible Cause
Remedy
The machine does not start. The motor is not supplied
with the correct voltage.
• Check the power supply.
The motor is defective.
• Replace the motor.
The coupling (CPL) is de-
fective.
• Replace the coupling
(CPL).
The machine does not reach
the usual pressure on the
discharge connection.
The inlet screen (IS) is par-
tially clogged.
• Clean the inlet screen (IS).
The inlet filter cartridge (op-
tional) is partially clogged.
• Replace the inlet filter
cartridge.
The pressure system or pres-
sure line is not leak-tight.
• Check the hose or pipe
connection for leakage.
The pressure relief valve/
regulating system (SV) is
misadjusted or defective.
• Adjust, repair or replace,
respectively.
Internal parts are worn or
damaged.
• Repair the machine (con-
tact Busch).
Partial clogging in the dis-
charge or pressure line.
• Remove the clogging.
The machine runs very nois-
ily.
Worn coupling (CPL).
• Replace the coupling
(CPL).
Oil level too low.
• Top up oil.
Defective bearings.
• Repair the machine (con-
tact Busch).
The machine runs too hot.
Insufficient cooling.
• Remove dust and dirt
from the machine.
Ambient temperature too
high.
• Observe the permitted
ambient temperature, see
Temperature of the process
gases at the inlet too high.
• Observe the permitted
gas inlet temperature, see
Oil level too low.
• Top up oil.
For the solution of problems not mentioned in the troubleshooting chart contact your
Busch representative.