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Signalling
AL 8
-In the work stage the stove detects a
pressure below the vacuum switch setting
NO NEG
threshold.
PRESS
-The system is stopped.
AL 9
-Appears when the combustion air flow is
INSUFF
below a certain threshold.
DRAUGHT
AL E
-Occurs when the water pressure does not
come within the values for correct
WATER
operation.
PRESSURE
-The system is stopped.
-Occurs in case of cutting in heating
AL A
chamber water temperature safety
thermostat.
SAFETY H2O
-The system is stopped.
AL B
-Occurs when the gearmotor works
AUG TRIAC
continuously and for more than 60 sec.
-The system is stopped.
ERROR
-Occurs in case of water T detection probe
Al C
fault,
WATER PROBE
displaying T H2O = 0 °C.
- The shutdown procedure
S1
is activated.
AL F
-Occurs when the water temperature has
HOT
exceeded the fixed limits.
-The system is stopped.
WATER S1
-Occurs in case of water T detection probe
Al G
fault,
WATER PROBE
displaying T H2O = 0 °C.
- The shutdown procedure
S2
is activated.
AL I
-Occurs when the water temperature has
HOT
exceeded the fixed limits.
-The system is stopped.
WATER S2
-Occurs in case of water T detection probe
Al H
fault,
WATER PROBE
displaying T H2O = 0 °C.
- The shutdown procedure
S3
is activated.
AL d
-Occurs when the water temperature has
HOT
exceeded the fixed limits.
-The system is stopped.
WATER S3
AWAITING
-Occurs on relighting the stove immediately
after having shut it down.
COOL
AIRFLOW
-Occurs when the air flow meter is
METER
disconnected.
FAILURE
-Occurs when the water temperature falls
FROST RISK
below a certain value.
-Occurs when the stove has exceeded
SERVICE
1800 hours of operation or 2000 Kg pellet,
since the previous servicing.
DUE
Fault
-The combustion chamber is dirty.
-The fume duct is obstructed.
-The fire door is not closed.
-The overpressure valves are open-stuck.
-Faulty vacuum switch.
-The combustion chamber is dirty.
-The fume duct is obstructed.
-The fire door is not closed.
-The overpressure valves are open-stuck.
-Faulty air flow meter.
-Occurs when the pressure transducer on
the water circuit detects a pressure below
or above the fixed limits.
-The safety thermostat has detected a
temperature above the setting threshold
due to overheating of the heating chamber
water blocking gearmotor operation.
-The controller detects a faulty gearmotor
control relay (contacts stuck).
-Faulty probe
-The probe is disconnected from the board.
-Occurs when the temperature probe in the
heating chamber detects a value above
92°C.
-Faulty probe
-The probe is disconnected from the board.
-Occurs when the temperature probe in the
heating chamber detects a value above
92°C.
-Faulty probe
-The probe is disconnected from the board.
-Occurs when the temperature probe in the
heating chamber detects a value above
92°C.
-Reset attempt in shutdown stage with
stove hot in cooling stage.
-The controller does not detect the amount
of combustion air and does not shut down
the stove; it only excludes the air flow
meter functions.
-The stove controller detects the water
temperature below 6°C and displays a
message.
-Extraordinary maintenance notice.
Possible causes
56
Cures
-Check cleanness of the fume duct and
combustion chamber.
-Check hermetic closing of the door.
-Check closing of the overpressure valves.
-Other reinstatement operations must be
carried out by a service centre.
-Check cleanness of the fume duct and
combustion chamber.
-Check hermetic closing of the door.
-Check closing of the overpressure valves.
-Other reinstatement operations must be
carried out by a service centre.
-Check the cause of the problem, restoring
the circuit pressure by bringing it to the
normal operating value.
-Check the cause of excessive overheating.
-Reset the relevant safety thermostat by
pressing the reset button.
-Reinstatement operations must be carried
out by a service centre.
-Reinstatement operations must be carried
out by a service centre.
-Check the cause of the problem, restoring
the temperature by bringing it to the normal
operating value.
-Reinstatement operations must be carried
out by a service centre.
-Check the cause of the problem, restoring
the temperature by bringing it to the normal
operating value.
-Reinstatement operations must be carried
out by a service centre.
-Check the cause of the problem, restoring
the temperature by bringing it to the normal
operating value.
-Alarm reset is possible only after
shutdown.
-Reinstatement operations must be carried
out by a service centre.
-The pump starts in order to move the water
inside the heating circuit.
- Monitor the water temperature so that it
does not fall below 0°C.
- Cleaning - extraordinary maintenance and
reinstatement operations must be carried
out by an authorised service centre.
T 18
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