BUSCH DOLPHIN VL 0100 A, Instruction Manual Supplement

Page: 25 / 36

Troubleshooting | 11
Instruction Manual Supplement DOLPHIN VL Systems ATEX_EN_en 25 / 36
Spare parts Description Part no.
Heat exchanger ser-
vice kit for:
VL 0320 A
VL 0430 A
VL 0510 A
VL 0530 A
VL 0630 A
VL 0750 A
VL 0800 A Intended for shell and tube heat exchanger
2x End cover seals
0990 700 564
If other parts are required:
• Contact your Busch representative.
11 Troubleshooting
Problem Possible Cause Remedy
The machine does not start. The motor is not supplied
with the correct voltage.
• Check the power supply.
Corrosion between the rotor
and the housing. • Eliminate by use of anti-
corrosion liquid.
• Repair the machine (con-
tact Busch).
Solid foreign matter has en-
tered the machine. • Remove the solid foreign
matter or repair the ma-
chine (contact Busch).
• Install an inlet screen if
necessary.
Ice in the machine, the oper-
ating liquid has frozen. • Carefully warm up the
machine.
• Defrost the operating liq-
uid.
The motor is defective. • Replace the motor.
The machine motor trip. Electrical breaker setting • Check electrical breaker is
correct setting for motor.
Operating liquid flow too
high • Adjust operating liquid
control valve (OPC) to
regulate operating liquid
flow.
Solid foreign matter has en-
tered the machine • Remove the solid foreign
matter or repair the ma-
chine (contact Busch).
• Install an inlet screen if
necessary.
Discharge pressure too high • Make sure the vent line is
free of restrictions.