ENGLISH
70
14.
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
LED
PROBABLE CAUSES
REMEDIES
The pump does not start.
Red: off
White: off
Blue: off
No electric power.
Check whether there is voltage in the socket and insert the plug again.
The pump does not start.
Red: on
White: on
Blue: off
Shaft blocked.
See paragraph Motor shaft maintenance.
The pump does not start.
Red: off
White: on
Blue: off
Utility at a level higher than the
system restarting pressure
level (par. 3.2).
Increase the system restarting pressure level by increasing SP or
decreasing RP.
The pump does not stop.
Red: off
White: on
Blue: off
1.
Leak in the system.
2.
Impeller or hydraulic part
clogged.
3.
Air getting into the suction
pipe.
4.
Faulty flow sensor.
1.
Check the system, find and eliminate the leak.
2.
Dismantle the system and remove the obstructions (assistance
service).
3.
Check the suction pipe, find and eliminate the cause of air getting in.
4.
Contact the assistance centre.
Insufficient delivery
Red: off
White: on
Blue: off
1.
Suction depth too high.
2.
Suction pipe clogged or
diameter insufficient.
3.
Impeller or hydraulic part
clogged.
1.
As the suction depth increases the hydraulic performance of the
product decreases (see par
. Description of the Electropump
). Check
whether the suction depth can be reduced. Use a suction pipe with a
larger diameter (but never smaller than 1”1/4 for the single pump,
larger sections for groups).
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 (assistance
service).
The pump starts without
utility request.
Red: off
White: on
Blue: off
1.
Leak in the system.
2.
Faulty non-return valve.
1.
Check the system, find and eliminate the leak.
2.
Service the non-return valve as described in paragraph 12.3.
The water pressure when
turning on the utility is not
immediate.
Red: off
White: on
Blue: off
Expansion vessel empty
(insufficient air pressure) or
has broken diaphragm.
Check the air pressure through the valve in the technical compartment. If
water comes out when checking, the vessel is broken: assistance service.
Otherwise restore the air pressure according to the equation (par. 1.4).
When the utility is turned
on the flow falls to zero
before the pump starts.
Red: off
White: on
Blue: off
Air pressure in the expansion
vessel higher than the system
starting pressure.
Calibrate the expansion vessel pressure or configure the parameters SP
and/or RP so as to satisfy the equation (par. 1.4).
The display shows BL
Red: on
White: on
Blue: off
1.
No water.
2.
Pump not primed.
3.
Setpoint not reachable with
the set RM value
1-2 Prime the pump and check whether there is air in the pipe. Check
whether the suction or any filters are blocked.
3. Set a RM value that allows the setpoint to be reached.
The display shows BP1
Red: on
White: on
Blue: off
1.
Faulty pressure sensor.
1.
Contact the assistance centre.
The display shows OC
Red: on
White: on
Blue: off
1.
Excessive absorption.
2.
Pump blocked.
1.
Fluid too dense. Do not use the pump for fluids other than water.
2.
Contact the assistance centre.
The display shows PB
Red: on
White: on
Blue: off
1.
Supply voltage too low.
2.
Excessive drop in voltage
on the line.
1.
Check the presence of the correct supply voltage.
2.
Check the section of the power supply cables.
The display shows: Press
^ to propagate this config
Red: off
White: on
Blue: off
One or more devices have
sensitive parameters not
aligned.
Press the ^ key on the device which we are sure has the most recent and
correct configuration of the parameters.
Table 14 Solving typical problems
