Troubleshooting - DAB e.sybox Instructions Pour L'installation Et L'entretien

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11 - TROUBLESHOOTING

Before starting to look for faults it is necessary to disconnect the
power supply to the pump (take the plug out of the socket).
Solving typical problems
Fault LED Probable Causes
Red: off
The pump
White: off No electric power.
does not
Blue: off
start.
The pump Red: on
does not White: on Shaft blocked.
start. Blue: off
Utility at a level higher
The pump Red: off
than the system
does not White: on
restarting pressure
start. Blue: off
level (par. 3.2).
1. Leak in the
system.
The pump Red: off 2. Impeller or hydrau-
does not White: on lic part clogged.
stop. Blue: off 3. Air getting into the
suction pipe.
4. Faulty flow sensor
110
Insufficient
delivery
Remedies
Check whether there is voltage
in the socket and insert the plug
again.
The pump
starts with-
See paragraph 10.4 (motor shaft
out utility
maintenance).
request.
The water
Increase the system restarting
pressure
pressure level by increasing SP or
when turn-
decreasing RP.
ing on the
utility is not
immediate.
1. Check the system, find and
eliminate the leak.
When the
2. Dismantle the system and
utility is
remove the obstructions (as-
turned on
sistance service).
the flow
3. Check the suction pipe, find
falls to zero
and eliminate the cause of air
before the
getting in.
pump starts
4. Contact the assistance centre.
1. As the suction depth increases
1. Suction depth too
high.
Red: off 2. Suction pipe
White: on clogged or diam-
Blue: off eter insufficient.
2. Check the suction pipe, find the
3. Impeller or hydrau-
lic part clogged.
3. Dismantle the system and
1. Leak in the 1. Check the system, find and
Red: off
system.
White: on
2. Faulty non-return 2. Service the non-return valve as
Blue: off
valve.
Check the air pressure through
the valve in the technical compart-
Expansion vessel
Red: off ment. If water comes out when
empty (insufficient
White: on checking, the vessel is broken:
air pressure) or has
Blue: off assistance service. Otherwise
broken diaphragm.
restore the air pressure according
to the equation par. 1.2.
Air pressure in the ex- TCalibrate the expansion ves-
Red: off
pansion vessel higher sel pressure or configure the
White: on
than the system start- parameters SP and/or RP so as to
Blue: off
ing pressure. satisfy the equation par.1.2.
the hydraulic performance of
the product decreases (De-
scription of the Electropump).
Check whether the suction
depth can be reduced. Use
a suction pipe with a larger
diameter (but never smaller
than 1").
cause of choking (obstruction,
dry bend, counterslope, ...) and
remove it.
remove the obstructions (as-
sistance service).
eliminate the leak.
described in par. 10.3.