ENGLISH
51
19.
TROUBLESHOOTING
FAULTS
CHECKS (POSSIBLE CAUSES)
TYPE OF INTERVENTION
1.
The motors P1
(or Pilot) and/or
P2 and/or P3
and/or P4 are not
fed.
A.
The magnetothermal switch of the
control panel (ref. QM1 and/or QM2
and/or QM3 and/or QM4) or the
differential automatic switch of the
distribution panel have tripped.
B.
No voltage on terminals L1-L2-L3.
C.
The protection fuses FU2 and/or
FU3 have tripped and the warning
light (ref. HL1) is off.
D.
The contactors ref. KM1 and/or
KM2 and/or KM3 and/or KM4
vibrate.
A.
Check the insulation of the pump cables.
Reset the magnetothermal switch inside
the control panel (ref. QM1-QM2-QM3-
QM4) or the differential switch on the
distribution panel.
B.
Check the panel connecting cables and
any switches or isolating switches that
may have tripped in the system.
C.
Find any short circuits and change the
fuses that have tripped. If the fault
remains, contact Dab Service.
D.
The supply voltage is insufficient.
2.
The pump P1
(or Pilot) and/or
P2 and/or P3
and/or P4
continues
delivering and
does not respond
to commands.
A.
The pressure transducer is faulty and
the “Pumps Controller” electronic
control unit indicates
BROKEN
SENSOR
.
B.
The contactors KM1 and/or KM2
and/or KM3 and/or KM4 are faulty
(contacts stuck).
C.
The “Pumps Controller” electronic
control unit is faulty.
D.
The “Pumps Controller” electronic
control unit indicates parameters
ERROR.
A.
Check the connections or replace the
parts.
B.
Change the component(s).
C.
Replace the control unit.
D.
Check the calibration of the parameters.
3.
No pressure in
the system.
A.
The “Pumps Controller” electronic
control unit is disabled. The
connection terminal for the remote
control (ref. 1-2) is open.
A.
Close the connection of the terminal.
