11 | Troubleshooting
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0870573103_RA0160-0302D_O2_-0001_IM_en
11 Troubleshooting
DANGER
Live wires.
Risk of electrical shock.
• Electrical installation work must only be executed by qualified personnel.
CAUTION
Hot surface.
Risk of burns!
• Prior to any action requiring touching the machine, let the machine cool down first.
EF
FV
GB
IS
CPL
OF
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
suction connection.
Oil level too low.
• Top up oil.
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.
Internal parts are worn or
damaged.
• Repair the machine (con-
tact Busch).
The machine runs very nois-
ily.
Worn coupling (CPL).
• Replace the coupling
(CPL).
Stuck vanes.
• Repair the machine (con-
tact Busch).
Defective bearings.
• Repair the machine (con-
tact Busch).
