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AL 1 - Black-out
This alarm is activated when the boiler is disconnected from the mains.
What to do
• Put the boiler in stand-by by pressing the off button for a few seconds.
AL 2 - Smoke sensor
This alarm signals breakage of the smoke sensor
What to do
• Put the boiler in stand-by by pressing the off button for a few seconds (4).
• Wait and make sure that the combustion of pellets left in the brazier has been completed.
• If necessary, call a support centre to replace the sensor
AL 3 - Smoke temp
This alarm signals excessive smoke exhaust temperature (see safety devices)
What to do
• Put the boiler in stand-by by pressing the off button for a few seconds (4).
• Wait and make sure that the combustion of pellets left in the brazier has been completed.
• If necessary, call a support centre to replace the sensor
AL 4 - Extract fault
This alarm indicates a failure to read the revs of the smoke expulsion motor by the control board. It may
have been activated due to motor fault or due to a lack of connection between the rev reader (encoder) in
the motor and the board.
What to do
Put the boiler in stand-by by pressing the off button for a few seconds.
Try switching the boiler back on.
Contact your support centre if the problem persists.
AL 5 – No start
This alarm signals an ignition failure. This alarm is activated when, during the start-up phase, a maximum
waiting time (about 20 minutes) is exceeded without the machine switching on successfully. (see ignition)
AL 6 – No pellet
This alarm indicates a flame failure in the brazier during normal boiler operation. The main causes are: no
pellets in the tank or blocking of the pellet feed screw.
What to do
• Put the boiler in stand-by by pressing the off button for a few seconds.
• Empty the brazier of all unburned accumulated pellets.
• In the event of pellet exhaustion in the tank, refuel the boiler and ignite it again. Do not insert pellets until
the boiler has cooled completely. Pellet refilling must always be performed with the boiler off or with
the boiler operating with the flame present.
• In the case of a pellet feed screw block, empty the tank and remove any foreign bodies present in the feed
screw. Then refill with pellets and start the boiler back up
• In the case of repeated feed screw blocks, call a support centre
AL 7 - Thermal safety
This alarm is activated by intervention of the safety thermostat installed inside the boiler
What to do
• Put the boiler in stand-by by pressing the off button for a few seconds.
• Wait and make sure that the combustion of pellets left in the brazier has been completed.
• Reset the safety thermostat located on the rear of the boiler under the outlet (see fig. 14).
Before resetting, make sure that the boiler is off and completely cooled down, then proceed as follows:
• Unscrew the cap located on the rear of the boiler (see figure 14);
• Press the red button applying a slight pressure;
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