Xylem Lowara Smart Pump Series - Page 7

7
en – Original instructions
A30
Multi-pump connection
alarm
Corrupted multi-pump
connection
 Check the condition of the connection cables
 Check that there are no address discrepancies
A31
Loss of multi-pump
connection
Loss of multi-pump connection
Check the condition of the connection cables
E01
Internal
communication error
Internal communication lost
Stop the pump for 5 minutes and then restart it again; if
the problem continues, contact Xylem or the Authorised
Distributor
E02
Motor overload error
High motor current
E03
DC-bus overvoltage
error
DC-bus overvoltage
Check:
 the system configuration
 the position and integrity of the non-return valves
E04
Trip control error
Motor stall
Stop the pump for 5 minutes and then restart it again; if
the problem continues, contact Xylem or the Authorised
Distributor
E05
EEPROM Data
memory error
EEPROM Data memory
corrupted
E06
Grid voltage error
Voltage supply out of operating
range
Check:
 the voltage
 the connection of the electric system
E07
Motor winding
temperature error
Motor thermal protection trip
 Check for impurities near the impeller and rotor.
Remove them if necessary
 Check the conditions of installation, and the water and
air temperature
 Wait for the motor to cool down
 If the error persists, stop the pump for 5 minutes and
then start it again
If the problem continues, contact Xylem or the Authorised
Distributor
E08
Power module
temperature error
Frequency converter thermal
protection trip
Check the conditions of installation, and the air
temperature
E09
Generic hardware
error
Hardware error
Stop the pump for 5 minutes and then restart it again; if
the problem continues, contact Xylem or the Authorised
Distributor
E11
LOW error
Lack of water detection (if P48=
ERR)
Check the water level inside the tank
E12
Pressure sensor error
Missing pressure sensor (not
present in ACT)
Check the condition of the connection cables
E14
Low pressure error
Pressure below minimum
threshold (not present in ACT)
Check the settings of parameters P45 and P46
E15
Loss of phase error
One of the three power supply
phases is missing.
Check the connection to the power supply network
E30
Multi-pump protocol
error
Incompatible multi-pump
protocol
Bring all the units to the same firmware version