Fault description Cause Remedy Personnel
The "Level" symbol appears flashing on
the LCD screen, plus the error message
‘Level warning’
W1-3.
The liquid level in the
storage tank has
reached "liquid level
low 1st stage".
Fill the storage tank Instructed per‐
sonnel
The symbol "Calibrate"
calappears
flashing on the LCD screen plus the error
message
‘Calibration warning’
W2-3.
The stroke adjustment
dial of the calibrated
pump was rotated by
more than 10 %.
Turn the stroke adjustment
dial back or recalibrate the
pump.
Instructed per‐
sonnel
The "Flow" symbol appears flashing on
the LCD screen, plus the error message
‘Defective strokes dosing’
W3-3.
The dosing monitor is
not correctly connected.
Connect the dosing monitor
correctly and
Press the
[P/OK]
key.
Electrician
The dosing monitor
reported too few
strokes, more than set
in the
‘FLOW’
menu.
Press the
[P/OK]
key.
Investigate and clear the
cause.
Technical per‐
sonnel
The symbol "Membrane"
diaappears
flashing on the LCD screen plus the error
message
‘Diaphragm break’
W4-3.
The diaphragm is
broken.
Replace the diaphragm and
clean the diaphragm rupture
sensor, refer to the "Repair"
chapter.
Technical per‐
sonnel
The "Stroke length adjustment" symbol
appears flashing on the LCD screen, plus
the error message
‘Stroke length mis-set’
W5-3.
The stroke adjustment
dial was rotated by
more than 10 % while
the menu was locked.
Turn the stroke adjustment
dial back or enter the code.
Technical per‐
sonnel
The symbol "Overload"
p+appears
flashing on the LCD screen plus the error
message
‘Overload FU’
W6-4.
A constriction or a
closed shut-off valve on
the discharge side.
Open the shut-off valve or rec‐
tify the constriction.
Technical per‐
sonnel
The "Temperature" symbol
appears
flashing on the LCD screen, plus the error
message
‘Temperature FU’
W7-4.
The frequency con‐
verter is overloaded.
Rectify the cause, then
press the
[P/OK]
key (think
through the consequences for
the process!).
Technical per‐
sonnel
The temperature is too
high.
Rectify the cause, then
press the
[P/OK]
key (think
through the consequences for
the process!).
Technical per‐
sonnel
The "Temperature" symbol
appears
flashing on the LCD screen, plus the error
message
‘Temperature PFC’
W7-5.
The pump is over‐
loaded.
Rectify the cause, then
press the
[P/OK]
key (think
through the consequences for
the process!).
Technical per‐
sonnel
The temperature is too
high.
Rectify the cause, then
press the
[P/OK]
key (think
through the consequences for
the process!).
Technical per‐
sonnel
The
‘BUS’
symbol
appears flashing on
the LCD screen, plus the error message
‘CANopen pump’
W8-3.
The HMI was con‐
nected to a CANopen
pump.
Disconnect the HMI from the
pump.
Technical per‐
sonnel
12.4
All Other Faults
Please contact the responsible ProMinent branch or agency, see
www.prominent.de
- "Contact" - "Your contact worldwide" or as the case
may be, the published by details of these operating instructions.
Troubleshooting
77
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