Xylem LOWARA e-LNEEE Traducción De Las Instrucciones Originales página 7

Troubleshooting of alarms and errors
Code Description
A03 Derating
A05 Data memory alarm Data memory corrupted
A06
LOW alarm
A15 EEPROM write
failure
A20 Internal alarm
E01 Internal
communication error
E02 Motor overload error High motor current
E03 DC-bus overvoltage
error
E04
Rotor blocked
E05
EEPROM Data
memory error
E06 Grid voltage error
E07 Motor winding
temperature error
E08
Power module
temperature error
Cause
Temperature too high
Lack of water detection (if P48=
ALR)
Data memory damaged
Internal communication lost
DC-bus overvoltage
• Motor stall
• Loss of rotor synchronism or
rotor blocked by external
materials
EEPROM Data memory
corrupted
Voltage supply out of operating
range
Motor thermal protection trip
Frequency converter thermal
protection trip
Solution
• Lower the room temperature
• Lower the water temperature
• Lower the load
1. Reset the default parameters using parameter
P68
2. Wait 10 s
3. Restart the pump
If the problem continues, contact Xylem or the
Authorised Distributor
Check the water level in the system
Stop the pump for 5 minutes and then restart it
again; if the problem continues, contact Xylem or
the Authorised Distributor
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 check valve or
the flap valve
• Check that there are no foreign bodies
preventing the pump from turning
• Stop the pump for 5 minutes and then start it
again
If the problem continues, contact Xylem or the
Authorised Distributor
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
en – Original instructions
7