Displaying And Clearing The Error Memory; Troubleshooting - DeDietrich ALEZIO O HYBRID User Manual

7 Troubleshooting

Fault code Message
E02.13 Blocking Input
E02.24 System flow locking
E06.03 Locking HydrauBackup Locking Hydraulic Backup
Tab.39 List of alarm codes
A02.06 Water Press Warning
A02.18 OBD Error
A02.22 System flow warning
A02.55 Inval or miss SerNR
A02.76 Memory full
7.2

Displaying and clearing the error memory

Access path
> Installer > Error history
7.3 Troubleshooting
Problems Probable causes
The radiators are cold. The heating set point tem­
perature is too low.
The heating mode is deac­
tivated.
The radiator valves are
closed.
The heat pump is not op­
erating.
The water pressure is too
low (< 1 bar).
46 200 ESL HYBRID
Description
Blocking Input of the Control Unit from device external environment
System water flow locking active
Insufficient flow: open a radiator valve
The circuit is clogged:
Check that the filters are not obstructed.
Clean and flush the installation.
Alarm codes
An alarm code corresponds to a temporary status of the hybrid pump
resulting from the detection of an anomaly. If an alarm code still remains
after several automatic start-up attempts, the hybrid system goes into error
mode.
When one of the following codes is displayed and the hybrid system
cannot restart automatically, contact a maintenance technician.
Water Pressure Warning active
Object Dictionary Error
System water flow warning active
Invalid or missing device serial number
The reserved space in memory for custom parameters value is full. No more user
changed possible
The error memory stores the 32 most recent errors. You can check the
details of each error and then clear it from the error memory.
To display and clear the error memory:
1. Follow the access path described below to access this information.
The list of the 32 most recent errors is displayed with the error code,
a short description and the date.
2. Select the error for which you want to view the details and press the
button.
3. To clear the error memory, press and hold the
Corrections
Increase the value of parameter
ted, increase the temperature on it.
Activate the heating mode.
Open the valves on all radiators connected to the heating system.
Check that the heat pump is switched on.
Check the fuses and switches on the electrical installation.
Top up the installation with water.
button.
or, if a room thermostat is connec­
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