BUSCH R5 - Page 63

Troubleshooting | 12
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Table 1
Problem Possible Cause Remedy
The machine does not start. The power indicator light
(PIL) is not activated.
No power signal.
The machine is not supplied
with the correct voltage.
• Check the power supply
connection.
The machine is powered on
but the touchscreen or the
PLC does not run.
• Check the 24 V power
supply.
The machine has reached a
limit operating value.
• Identify and solve the
problem listed in the
menu “HOME” >
“WARNING/ALARM”,
see Warnings and Alarms
Thresholds [►51].
• Look up the related prob-
lem in the troubleshoot-
ing table 2.
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,
see Filling Oil [►25].
The inlet filter cartridge (IF)
is partially clogged.
• Replace the inlet filter
cartridge (IF).
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).
The machine runs too hot. Insufficient cooling. • Remove dust and dirt
from the machine.
• Standard air-cooled va-
cuum pump: check the
heat exchanger (AHE).
• Water-cooled vacuum
pump: check the water
heat exchanger (WHE)
and the water filter (WF).
Ambient temperature too
high.
• Observe the permitted
ambient temperature.
Oil level too low. • Top up oil,
see Filling Oil [►25].
The exhaust filters (EF) are
partially clogged.
• Replace the exhaust filters
(EF), see Exhaust Filter
Change [►58].