16 Troubleshooting
User qualifications - see following table and
Ä ‘Qualification of personnel’
on page 12
WARNING!
Warning of hazardous feed chemical
Should a dangerous feed chemical be used: it may
escape from the hydraulic components when working on
the pump, material failure or incorrect handling of the
pump.
– Take appropriate protective measures before
working on the pump (e.g. safety glasses, safety
gloves, ...). Adhere to the material safety data sheet
for the feed chemical.
– Drain and flush the liquid end before working on the
pump.
CAUTION!
Warning of feed chemical spraying around
Feed chemical can spray out of the hydraulic compo‐
nents if they are manipulated or opened due to pressure
in the liquid end and adjacent parts of the system.
– Disconnect the pump from the mains power supply
and ensure that it cannot be switched on again by
unauthorised persons.
–
Depressurise the system before commencing any
work on hydraulic parts.
16.1 Faults without a fault message
Fault description Cause Remedy Personnel
Fluid escaping from the
liquid end.
The pump hose has a
leak.
Replace the pump hose - refer to the "Repair"
chapter.
If a pump hose rupture has been indicated, clean
the hose rupture indicator - refer to the "Repair"
chapter.
Technical
personnel
Green LED display
(operating indicator) not
lighting up.
The wrong mains
voltage or no mains
voltage is connected.
The specified mains voltage as per the voltage
specification can be found on the nameplate.
Electrician
16.2 Faults with error message
16.2.1
Fault messages on the LCD screen
In the event of a fault:
n the red LED display lights up.
n an identifier and a message appear on the LCD screen.
n the pump stops.
Safety information
Faults without a fault message
Troubleshooting
89
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