16
water solutions
First installation manual – Translation of original instructions
3
Tripped circuit breaker
High drop voltage
Reestablish the correct voltage supply.
Low voltage supply
Measure the voltage supply. Reestablish the correct voltage
supply.
Clogged hydraulic
Clean the hydraulic parts and remove the blocking material
Blocked rotor
Contact an authorised service center.
Short circuit in the motor winding
Contact an authorised service center.
Wrong electrical connection
Check and correct the electrical installation.
Low setting of the thermal relay
Set the relay in accordance with the rated current on the name-
plate
4
Tripped residual current
device (RCD)
Low motor winding insulation
Contact an authorised service center.
Fault in cable
Have the cable checked and repaired by a qualified electrician.
5
The pump operates but the
flow is low or null
Clogged hydraulic
Clean the hydraulic parts and remove the blocking material
Clogged outlet pipe
Clean the outlet pipe.
Blocked non-return valve
Clean the non-return valve.
Outlet valve blocked or closed
Open and/or clean the outlet valve.
Wrong direction of rotation
Check the direction of rotation, interchange any two of the pha-
ses.
Leakage in the pipeline
Check the pipeline and fix the leakage causes.
Wrong pump selection
Replace the pump with a suitable one.
6
Starts per hour exceed the
permitted number
Wrong setting of the level control
Correct the level control setting.
Level control malfunction
check the level sensors functionality.
Turbolence near the level sensors
Remove the causes of turbulence or change the positioning of
the level sensors.
Undersized tank
Adjust the tsank dimension.
7
Noisy operation and excessi-
ve vibrations
Fault in bearings
Contact an authorised service center.
Damaged impeller
Contact an authorised service center.
Blocked impeller
Clean the hydraulic parts and remove the blocking material
Wrong direction of rotation of the
impeller
Check the direction of rotation, interchange any two of the phases.
8
The pump works correctly but
absorbed current is too high
Wrong duty point
Make sure the pump operates within its operative range
Wrong voltage supply
Reestablish the correct voltage supply.
Clogged hydraulic
Clean the hydraulic parts and remove the blocking material
Fault in bearings
Contact an authorised service center.
Wrong direction of rotation of the
impeller
Check the direction of rotation, interchange any two of the phases.
9
Leakage detection
Water ingress in the motor due to
damaged cables, o-rings or cable
glands.
Contact an authorised service center.
Water ingress in the mechanical
seal chamber due to wearing or
breaking down of mechanical seals
or o-rings
Contact an authorised service center.
EN
