Ferroli TERMO NOVARA Manual De Instalación, Uso Y Mantenimiento página 65

Signalling
-In the work stage the stove
AL 8
detects a pressure below the
NO NEG
vacuum switch setting
threshold.
PRESS
-The system is stopped.
AL 9
-Appears when the
INSUFF
combustion air flow is below a
certain threshold.
DRAUGHT
-Occurs when the water
AL E
pressure does not come within
WATER
the values for correct
operation.
PRESSURE
-The system is stopped.
-Occurs when the gearmotor
AL b
works continuously and for
AUG TRIAC
more than 60 sec.
ERROR
-The system is stopped.
-Occurs in case of a water
AL c
temperature probe fault.
WATER
-The shutdown procedure is
PROBE
activated.
-Occurs when the water
AL d
temperature has exceeded the
HOT
fixed limits.
WATER
-The system is stopped.
-Occurs on relighting the stove
WAITING
immediately after having shut
COOL
it down.
AIR FLOW
-Occurs when the air flow
METER
meter is disconnected.
FAILURE
-Occurs when the water
FROST RISK
temperature falls below a
certain value.
- Occurs when the stove has
SERVICE
exceeded 1800 hours of
operation or 2000 Kg pellet,
DUE
since the previous servicing.
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 0,6
bar or above the fixed limits.
-The controller detects a faulty
gearmotor
(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.
-Reset attempt in shutdown
stage with stove hot in cooling
stage.
-The controller does not detect
the quantity of combustion air
and does not shut down the
stove; it only excludes the air
flow meter functions.
-The stove control detects the
water temperature below 6°C
and displays a message.
-Extraordinary
notice.
65
Possible causes
control relay
maintenance
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 door.
-Check closing of
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.
-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.
-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 a service
centre.
TERMO-NOVARA
the