DAB E.sybox Instrucciones Para La Instalación Y El Mantenimiento página 114

GB
ENGLISH
12 - 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
Red: off
The pump
White: off No electric power.
does not
Blue: off
start.
The pump
Red: on
White: on Shaft blocked.
does not
start.
Blue: off
Utility at a level higher
The pump
Red: off
than the system
White: on
does not
restarting pressure
start.
Blue: off
level (par. 3.2).
1. Leak in the
The pump 2. Impeller or hydrau-
Red: off
White: on
does not
stop. 3. Air getting into the
Blue: off
4. Faulty flow sensor
114
Probable Causes Remedies
Check whether there is voltage
in the socket and insert the plug
again.
See paragraph 10.4 (motor shaft
maintenance).
Increase the system restarting
pressure level by increasing SP or
decreasing RP.
1. Check the system, find and
eliminate the leak.
system. 2. Dismantle the system and
remove the obstructions (as-
lic part clogged. sistance service).
3. Check the suction pipe, find
suction pipe. and eliminate the cause of air
getting in.
4. Contact the assistance centre.
1. Suction depth too
high.
2. Suction pipe
Red: off
Insufficient
White: on clogged or diam-
delivery
eter insufficient.
Blue: off
3. Impeller or hydrau-
lic part clogged.
The pump 1. Leak in the
Red: off
starts with- system.
White: on
2. Faulty non-return
out utility
Blue: off
request. valve.
The water
Expansion vessel
pressure
Red: off
when turn- empty (insufficient
White: on
ing on the air pressure) or has
Blue: off
broken diaphragm.
utility is not
immediate.
When the
utility is
Air pressure in the ex-
turned on Red: off
pansion vessel higher
the flow White: on
than the system start-
falls to zero
Blue: off
ing pressure.
before the
pump starts
1. As the suction depth increases
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").
2. Check the suction pipe, find the
cause of choking (obstruction,
dry bend, counterslope, ...) and
remove it.
3. Dismantle the system and
remove the obstructions (as-
sistance service).
1. Check the system, find and
eliminate the leak.
2. Service the non-return valve as
described in par. 10.3.
Check the air pressure through
the valve in the technical compart-
ment. If water comes out when
checking, the vessel is broken:
assistance service. Otherwise
restore the air pressure according
to the equation par. 1.2.
TCalibrate the expansion ves-
sel pressure or configure the
parameters SP and/or RP so as to
satisfy the equation par.1.2.