Table of Contents
Advertisement
8 Troubleshooting
In case of alarm or error, the display shows and ID code and the STATUS LED turns on (also see
Par. 6.3.2).
In case of several alarms and/or errors, the display shows the main one.
Alarms and errors:
are saved with date and time
can be reset by switching the unit off for at least 1 minute.
Errors cause the triggering of the status relay on the following terminal box pins:
single-phase version: pins 4 and 5
three-phase version: pins 24 and 25
8.1 Alarm codes
Table 14: Alarm codes
code
A03
A05
A06
A15
A20
8.2 Error codes
Table 15: Error codes
code
E01
E02
E03
Description
Cause
Derating
Temperature too high
Data memory
Data memory
alarm
corrupted
LOW alarm
Lack of water detection
(if P48= ALR)
EEPROM write
Data memory damaged
failure
Internal alarm
Description
Cause
Internal
Internal communication lost
communication
error
High motor current
Motor overload
Current absorbed by the motor
error
too high
DC-bus overvoltage
DC-bus overvoltage
External conditions cause the
error
operation of the pump from
generator
Remedy
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
Remedy
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 clapet valve
en – Original instructions
37
Advertisement
Table of Contents
