POSSIBLE TROUBLESHOOTING
7) Signalling:
H7 over heated fumes (turns off due to exceeding maximum smoke temperature).
Problem:
Switches off because of overheated fumes.
Over heated fumes may depend on: type of pellets, anomalous fume extraction, blocked channel, incorrect
installation, gear motor drift, lack of air vents in the room.
8) Signalling: H8 H2O temp alarm (this occurs if the water temperature sensor reads a temperature above 90°C)
Problem:
Shuts down due to water temperature being higher than 90 °C.
An excessive temperature may occur because of the following:
• system too small: ask the DEALER to activate the ECO function
• blockage: clean the exchanger pipes, the combustion chamber and the smoke outlet.
9) Signalling: AL 09 (intervenes if the fl ow sensor detects insuffi cient combustion ).
Problem:
Turns off for lack of depression
Air fl ow may be insuffi cient because the door is open, the door does not close properly (e.g. bad seal), there is an
air intake or smoke extraction problem, or the combustion chamber is clogged.
Actions:
Check:
• door closure;
• combustion air intake duct (clean, paying attention to the fl ow sensor components);
• clean the fl ow sensor with dry air (like that used for PC keyboards);
• stove location: respect and check a minimum distance of 10 cm from the wall;
• combustion chamber position and cleanliness (clean regularly according to the type of pellet);
• smoke duct (clean);
• installation (if it does not comply with regulations or the smoke outlet has more than 3 bends);
If you suspect the sensor is malfunctioning, carry out cold tests. If the conditions are changed (for example by
opening the door) and the value does not change, there is a sensor problem (DEALER).
N.B.:
The no depression alarm may also occur during ignition, since the fl ow sensor starts monitoring 90 seconds after
the ignition cycle begins.
10) Signalling: "Bat. 1"
Problem:
The boiler-stove does not stop but the error appears on the display.
Actions:
• The buffer battery of the control board needs changing (DEALER).
11) Signalling:
AL HC - HIGH CURRENT ALARM: Activated when anomalous, excessive current is being
absorbed by the gear motor.
Actions:
Check functioning (CAT): gear motor - Electrical connections and electronic board .
12) Signalling:
AL LC - LOW CURRENT ALARM: Activated when anomalous, insuffi cient current
absorption is detected on the gear motor.
Actions:
Check functioning (CAT): gear motor - pressure switch - tank thermostat - electrical connections and
electronic board
NOTA
CHECK AIR ENTRY/NO DRAUGHT: these can occur only during the start-up phase at the end of the LEONARDO system
checks; though they do not cause the stove to shut down, we recommend contacting the Technical Assistance Centre if the signal
appears frequently.
N.B.:
The combustion chambers and smoke ducts connected to the solid-fuel appliances must be cleaned once a year (check if your
country has specifi c legislation covering this).
Failure to regularly check and clean increases the likelihood of a fi re in the chimney pot.
In the case of a fi re in the boiler-stove, in the fl ue or in the chimney, proceed as follows:
- Disconnect the power supply
- Use a carbon dioxide (CO
2
- Call the fi re brigade
DO NOT ATTEMPT TO PUT THE FIRE OUT WITH WATER!
After the event, have the appliance checked by an authorised Service Centre and have an authorised technician check the fl ue.
IMPORTANT!!!
) extinguisher
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