10. 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)
Fault
The pump does not start.
The pump does not start.
The pump does not start.
The pump does not stop.
Insufficient delivery.
LED
Red: off
No electric power.
White: off
Blue: off
Red: on
Shaft blocked.
White: on
Blue: off
Red: off
Utility at a level higher than the system
White: on
restarting pressure level (par. 3.2).
Blue: off
Red: off
1.
White: on
2.
Blue: off
3.
4.
Red: off
1. Suction depth too high.
White: on
2. Suction pipe clogged or diameter
Blue: off
3. Impeller or hydraulic part clogged.
ENGLISH
Figure 9
Probable Causes
Leak in the system.
Impeller or hydraulic part clogged.
Air getting into the suction pipe.
Faulty flow sensor.
insufficient.
20
Remedies
Check whether there is
voltage in the socket and
insert the plug again.
See paragraph 9.4 (motor
shaft maintenance).
Increase
the
system
restarting pressure level by
increasing
SP
decreasing RP.
1. Check the system, find
and eliminate the leak.
2. Dismantle
the
system
and
remove
obstructions (assistance
service).
3. Check the suction pipe,
find and eliminate the
cause of air getting in.
4. Contact the assistance
centre.
1. As the suction depth
increases the hydraulic
performance
of
product
decreases.
Check
whether
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..)
remove it.
or
the
the
the
and