Disassemble And Replace The Pump Parts; Troubleshooting For Users - Xylem LOWARA e-MPA Manual De Instalación, Funcionamento Y Mantenimiento

en - Original instructions
6.3 Disassemble and replace the pump
parts
For more information about spare parts and
assembly and disassembly of the pump, contact
the local sales and service representative.
7 Troubleshooting

7.1 Troubleshooting for users

The main switch is on, but the electric pump
does not start
Cause
The thermal protector
incorporated in the
pump (if any) has
tripped.
The protective device
against dry running
has tripped.
The electric pump starts, but the thermal
protection trips a varying time after.
Cause
There are foreign
objects (solids or
fibrous substances)
inside the pump
which have jammed
the impeller.
The pump is
overloaded because
it is pumping liquid
that is too dense and
viscous.
The pump runs but delivers too little or no liquid.
Cause Remedy
The pump is Contact the Sales and
clogged. Service Department.
The troubleshooting instructions in the tables
below are for installers only.
7.2 The main switch is on, but the
electric pump does not start
Cause

There is no power
supply.

The thermal protector
incorporated in the
pump (if any) has
tripped.
The thermal relay or
motor protector in the
electric control panel
24
Remedy
Wait until the pump
has cooled down.
The thermal
protector will
automatically reset.
Check the liquid
level in the tank, or
the mains pressure.
Remedy
Contact the Sales
and Service
Department.
Check the actual
power requirements
based on the
characteristics of the
pumped liquid and
then contact the
Sales and Service
Department.
Remedy
Restore the power
supply.
Make sure all
electrical
connections to the
power supply are
intact.
Wait until the pump
has cooled down.
The thermal
protector will
automatically reset.
Reset the thermal
protection.
has tripped.
The protective device
against dry running
has tripped.
The fuses for the
pump or auxiliary
circuits are blown.
7.3 The electric pump starts, but the
thermal protector trips or the fuses
blow immediately after
Cause
The power supply
cable is damaged.
The thermal protection
or fuses are not suited
for the motor current.
The electric motor is
short circuit.
The motor overloads.
7.4 The electric pump starts, but the
thermal protector trips or the fuses
blow a short time after
Cause
The electrical panel is
situated in an
excessively heated
area or is exposed to
direct sunlight.
The power supply
voltage is not within the
working limits of the
motor.
A power phase is
missing.
7.5 The electric pump starts, but the
thermal protector trips a varying time
after
Cause
There are foreign
objects (solids or
fibrous substances)
inside the pump
which have jammed
the impeller.
The pumps delivery
rate is higher than
the limits specified
on the data plate.
Check the:

liquid level in
the tank, or the
mains
pressure.

protective
device and its
connecting
cables.
Replace the fuses.
Remedy
Check the cable
and replace as
necessary.
Check the
components and
replace as
necessary.
Check the
components and
replace as
necessary.
Check the
operating
conditions of the
pump and reset the
protection.
Remedy
Protect the
electrical panel
from heat source
and direct sunlight.
Check the
operating
conditions of the
motor.
Check the

power supply

electrical
connection
Remedy
Contact the local sales
and service
representative.
Partially close the on-
off valve down stream
until the delivery rate
is equal or less than