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Troubleshooting
When a fault appears on the display, the flame symbol
goes out, a flashing code is shown and the two symbols
and
appear either together or separately.
For a description of the faults, consult the following table.
FAULT
NO FLAME BLOCK (D)
FALSE FLAME (D)
SAFETY THERMOSTAT (D)
BURNER THERMOSTAT (D)
FUMES OUTLET OR AIR PRESSOSTAT (D)
FUMES OUTLET OR AIR PRESSOSTAT (T)
INSUFFICIENT CIRCUIT PRESSURE (D) (*)
INSUFFICIENT CIRCUIT PRESSURE (T)
WATER PRESSURE TRANSDUCER (D)
ELECTRONIC BOARD (D)
DHW SENSOR (T) (°)
CH SENSOR (T)
LOW TEMPERATURE THERMOSTAT (T)
(D) Permanent
(T) Temporary. In this operating status the boiler attempts to eliminate the fault on its own
(°) For MIX C.S.I.: see NOTE on next page
For MIX R.S.I.: only with external water tank with sensor. The fault code is shown when the boiler is in stand-by
(*) For the "insufficient circuit pressure" fault, proceed with the circuit filling operations described in the Functions chapter
Resetting faults
Wait for about 10 seconds before resetting operating
conditions.
Then proceed as follows:
1)
Viewing just the
If
disappears, it means that an operating fault has
been discovered which the boiler is attempting to solve
on its own (temporary stoppage).
If the boiler does not resume normal operation, two things
may happen:
case A (fig. 34)
disappears, the
code appear.
In this case, proceed as described in point 2.
case B (fig. 35)
and a different alarm code are displayed together
with
.
In this case, proceed as described in point 3.
2)
Viewing just the
Press the
button to reset the appliance. If the boiler
starts the ignition phase and resumes normal operation,
it may have stopped by accident.
If these stoppages should continue, contact the Technical
Assistance Centre.
symbol
symbol and a different alarm
symbol (fig. 36)
Alarm
ID
10
11
20
21
30
31
40
41
42
50-59
60
71
77
CASE A
temporary fault
permanent fault
Fig. 34
21
Symbol
Symbol
YES
NO
YES
YES
YES
NO
YES
NO
YES
NO
NO
YES
YES
NO
NO
YES
YES
YES
YES
YES
NO
YES
NO
YES
YES
YES
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