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8. OPERATING PROBLEMS
Always DISCONNECT THE BOX FROM THE ELECTRICITY SUPPLY before
carrying out repair and maintenance work
8.1 Information and control box malfunction indicators
SIGNAL
1) "SUPPLY ON-OFF"
a) is not lit :
DIODE
2) "DRY RUNNING
a) lit when the pump is operating :
LEVEL" DIODE
b) lit when the pump is idle :
c) flashing :
3) "EXCESSIVE PRES-
a) lit :
SURE" DIODE
b) flashing :
4) GREEN "PUMP"
a) lit :
DIODE
5) RED "PUMP" DIODE
a) lit :
6) LIQUID CRYSTAL
a) "OFF" display flashes with the present circuit
DISPLAY
pressure :
7) LIQUID CRYSTAL
a) "SF" display :
DISPLAY
8) LIQUID CRYSTAL
a) "Err" display :
DISPLAY
9) LIQUID CRYSTAL
a) lit :
DISPLAY, SPARE
b) flashing :
PUMP SYMBOL
OBSERVATION
a) Check the power supply of the electronic boards; test the mains supply and the
a) Dry running" detection, but the delay time is less than delay time T1.
b) Dry running signal: pumps stopped after authorised time delay T1.
c) Dry running is no longer detected. Turn the rotary switch to turn off the diode and
a) Installation pressure higher than excessive pressure threshold : pumps stopped after
b) Following an excessive pressure fault, the pressure returns to normal. Turn the rotary
a) At least one pump is operating.
a) At least one pump is signalling a fault. Faulty pump is identified in the Pump Modes
a) Remote ON/OFF input contact not closed. Wiring disconnected. Check the termi-
a) Transmitter failure: replace with a new one.
a) Stored current failure (extended menu function selected).
a) Back-up pump mode selected.
b) Back-up pump not available, i.e. faulty, remote control disconnected or pump
CORRECTIVE MEASURE
fuses (change them if necessary).
deactivate the fault report.
three seconds.
switch to turn off the diode and deactivate the fault report.
menu by a "key" symbol.
nal screws are in correctly.
No electric connection with the transmitter, cable cut-off: replace with a new one.
If necessary, use the pump forced operation switches.
stopped by "Dry running Protection" function".
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