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M a i n t e n a n c e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T e c h n i c a l T r a i n i n g
Service visit:
Additional operations during five-yearly visits.
Components to clean:
- heating valve (remove and rinse in water to remove any deposits)
- Descale the plate heat exchanger
The seals must be replaced each time they are removed.
Check the fault history during the maintenance visit:
It is important to check the fault history (see below) during the maintenance visit to see if any repetitive faults are occurring.
Some faults do not display on the screen but are recorded in the log:
- fault F22: lack of water pressure (the symbol
appears, however, on the screen)
- fault F49: voltage too low on the e-bus or short circuit on the e-bus connector
Ionisation quality check:
Check value d44 on the after-sales menu. If this value drifts from one maintenance to another, it indicates a deterioration in flame
detection.
(Note: This value is in a range of 0 to 1000. The lower the value when the burner is lit, the better the detection. However, the value
varies from one installation to another. Therefore, it is not possible to give a standard value.
Fault history
This menu displays the last 10 fault codes that have occurred on the appliance.
To display the fault code history, press the and and mode buttons simultaneously for at least 3 seconds.
The screen displays the first fault “01 F.xx”.
To display the other faults occurring on the appliance, press the button of mode .
To erase the fault code history, refer to the Installer menu code 94.
Data storage:
The important data is stored on the main circuit board with a copy on the interface card.
If one of these cards is changed during After Sales Service, the boiler data is automatically copied from the circuit remaining in place to
the changed circuit.
On the other hand, if you have to change both cards, it will be necessary to go through the entire After Sales menu and re-enter each
data item.
History
Fault code
01
XX
02
XX
...
XX
09
XX
10
XX
3 s
3 s