BUSCH SB 0530 D2 - Troubleshooting; Troubleshooting Guide

Troubleshooting | 11
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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.
Problem Possible Cause Remedy
The machine does not start. At least two power supply
leads are interrupted
• Check the fuses, terminals
and power supply cables
The motor is not supplied
with the correct voltage.
• Check the power supply.
The motor is defective. • Repair the machine (con-
tact Busch).
The machine does not start;
humming noise.
One power supply lead is in-
terrupted
• Check the fuses, terminals
and power supply cables
Impeller defective • Replace impeller
Impeller is jammed • Open the cover, remove
foreign body and clean.
• Check the impeller gap.
Bearing on motor side ma-
chine side is defective
• Replace defective bearing.
Motor protective switch trips
when starting the machine.
Power consumption is too
high.
Winding short-circuit • Check the winding.
Motor overloaded. Throt-
tling does not match spe-
cification on rating plate
• Reduce throttling.
• Clean filters, mufflers and
connecting pipes.
Compressor is jammed.
• See The machine does
not start; humming
noises [►15].
The machine runs very nois-
ily.
The machine runs in the
wrong direction
• Check the direction of ro-
tation.
Bearings lacking grease • Relubricate or replace if
necessary.
Defective bearings. • Repair the machine (con-
tact Busch).
The machine runs with ab-
normal flow noises.
The flow speed is too high • Use larger sized pipes.
The silencers are soiled. • Check silencer inserts,
clean or replace if neces-
sary.