Alarm Codes; Accessing The Error Memory - DeDietrich ALEZIO O HYBRID User Manual

8 Troubleshooting
Fault code Message
E02.41 FLUE TEMPERATURE
PRESSURE SWITCH
PRESENT
E02.42 FLUE TEMPERATURE
PRESSURE SWITCH
PRESENT
E02.44 FLUE GAS PRESSURE
SWITCH NOT
SWITCHED ERROR
Tab.35 List of alarm codes
Error code Message
A02.06 WATPRESSURE
WARNING
A02.22 SYSTEM FLOW
WARNING
A02.18 OBD ERROR
8.2

Accessing the error memory

Fig.56
MW-2000369-1
Fig.57
Fig.58
52 200 ESL HYBRID
Description
Presence of a flue gas pressure switch
Presence of a flue gas thermostat
Flue gas thermostat not fitted.
8.1.3

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.
An alarm code is a temporary boiler status resulting from the detection of
an anomaly. If an alarm code still remains after several automatic start-up
attempts, the boiler goes into error mode.
When one of the following codes is displayed and the hybrid system
cannot restart automatically, contact a maintenance technician.
When one of the following codes is displayed and the boiler cannot restart
automatically, contact a competent and qualified person.
Description
Water pressure in the installation lower than the minimum pressure
Flow rate in the installation lower than the minimum flow rate
Internal error
The error and fault codes are listed together in the memory.
1. Access the menus by pressing the two keys on the right
simultaneously.
2. Select the Malfunction menu
3. Select the PCB by pressing the
Confirm the PCB selection by pressing the
appears.
Important
The Er:xxx parameter flashes. 000 corresponds to the number of
stored errors.
4. Go to the error details by pressing the
by pressing the key.
or key. The icon appears.
key: the PCB name
key.
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