Low Voltage Alarm
Temporary shutdown
Incorrect mains frequency detection
alarm
Temporary shutdown
Flame loss for more than 3 consecutive
times alarm
Permanent shutdown
Button alarm
Temporary shutdown
Remote control panel communication
fault
(only for external model)
Permanent shutdown
Alarm for Time out gas valve
Permanent shutdown
Valve calibration request
Permanent shutdown
AL70 - Inlet temperature >70°C alarm
A single flashing bell is displayed
The full display is only available in the
alarm log
Temporary shutdown
Alarm as domestic water Delta T not
reached upon power on
Permanent shutdown
Driver error alarm (software not updat-
ed)
Permanent shutdown
Alarm for combustion problem upon
power on
Permanent shutdown
Shutdown due to persistent poor com-
bustion
Permanent shutdown
Alarm due to poor combustion
Temporary shutdown
AL84 - Poor combustion alarm
A single flashing flame is displayed
The full display is only available in the
Temporary shutdown
alarm log
Wait until automatic reset of the water heater.
If the fault persists, request the assistance of a qualified techni-
cian.
Wait until automatic reset of the water heater.
If the fault persists, request the assistance of a qualified techni-
cian.
Request the assistance of a qualified technician.
This is displayed when you keep pressed the button for more than
30 seconds, once the button is released the fault disappears.
Request the assistance of a qualified technician.
Press and hold the
appear on the display, release the button.
The appliance automatically restarts. If the fault persists, request
the assistance of a qualified technician.
Request the assistance of a qualified technician.
Request the assistance of a qualified technician.
Request the assistance of a qualified technician.
Request the assistance of a qualified technician.
Press and hold the
appear on the display, release the button.
The appliance automatically restarts. If the fault persists, request
the assistance of a qualified technician.
Request the assistance of a qualified technician.
Request the assistance of a qualified technician.
Request the assistance of a qualified technician.
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button. As soon as the letters
button. As soon as the letters