Xylem LOWARA e-HME Guide De Démarrage Rapide page 7

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