Xylem ECOCIRC XL, XLplus Electronic drive - Manual (Page 14)

5 Fault finding
Referring to Figure 10 (in case of plug-connected
models) and to Figure 11 (in case of terminal-
connected models), as briefly described in par. 4.1

In case of any alarm that allows the pump
to continue running, the display shows
alternatively alarm code (see par. 5.1) and
last quantity selected, while the status
indicator becomes orange

In case of a failure that stops the pumps,
the display shows the error code (see par.
5.2) permanently and the status indicator
becomes red
5.1 Alarm codes
Alarm
code
Description Cause
A01 Water probe alarm
Fluid sensor
anomaly
A02
Water over-temperature
alarm High temperature
on the fluid
A05 Data memory alarm
Data memory
corrupted
A06
External water temp.
probe alarm
External
temperature probe
anomaly
A07 Pressure sensor alarm
External pressure
sensor anomaly
A12
Twin pump
communication alarm
Twin pump
communication
lost
A20 Internal alarm
5.2 Error codes
Error
code
Description Cause
E01
Internal communication
error
Internal
communication
lost
E02 Motor overload error High motor current
E03 DC-bus overvoltage error
DC-bus
overvoltage
E04 Trip control error Motor stall
E05
EEPROM Data memory
error EEPROM Data
memory corrupted
E06 Grid voltage error
Voltage supply out
of operating range
E07
Motor winding
temperature error Motor thermal
protection trip
E08
Power module
temperature error Inverter thermal
protection trip
E09 Generic Hardware error Hardware error
E10 Dry-run error Dry run detection