44
COMMISSIONING AND MAINTENANCE
3.2.9
Ignition failure
If an ignition or operating anomaly occurs, the thermal unit dis-
play will show a text message (small digit) and a number (large
digit), which vary according to the anomaly detected.
For a detailed description, see the error list.
There are 3 error levels:
− Permanent (Loc)
− Temporary (Err)
− Alerts (AttE)
The section with the large digit will display the error number
and , according to the error / alert, a message which will cycli-
cally blink together with the number.
For a detailed description, see the error list.
Permanent Error
The text “Loc” is displayed together with the permanent error
number. The icon
indicates that the burner is disabled. The
equipment must be manually reset by keeping the key “ENETER/
RESET” pressed.
Temporary Error
The text “Err” is displayed together with the temporary error
number.
The icon
indicates that the burner is disabled.
The lock-out error must be solved.
Warnings
The text “AttE” is displayed together with the alert number.
The equipment is not locked out, but its functions may be limit-
ed (according to the alert).
3.3
Checks during and after initial start-up
Once the boiler has started up, make sure that it shuts down
and re-starts properly when:
− By changing the set temperature;
− By moving the main switch from (
I
) to (
0
) and vice versa;
°C
− The room thermostat or timer setting is changed;
− Check that the circulator rotation is free and correct;
