Last Calor TERMO-VIOLA Manuel D'installation, D'utilisation Et D'entretien page 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
DUE operation since the previous
servicing.
The Manufacturer reserves the right to make technical or aesthetic changes to the products at any time without notice.
The drawings, measurements, diagrams and any other configurations are given only by way of example.
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-VIOLA
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