MySMART C.S.I.
11
4.4 Faults
BOILER STATUS
DISPLAY
TYPES OF ALARMS
Off status(OFF)
OFF
None
Stand-by
-
Signal
ACF alarm lockout module
A01
Definitive lockout
ACF electronics fault alarm
Limit thermostat alarm
A02
Definitive lockout
Tacho fan alarm
A03
Definitive lockout
Water pressure switch alarm
A04
Definitive lockout
NTC domestic water fault
A06
Signal
NTC heating outlet fault
A07
Temporary stop
Heating outlet probe over-temperature
Temporary then definitive
Outlet/return line probe differential alarm
Definitive lockout
NTC heating return line fault
A08
Temporary stop
Heating return line probe over-temperature
Temporary then definitive
Outlet/return line probe differential alarm
Definitive lockout
Cleaning the primary heat exchanger
A09
Signal
NTC flue gases fault
Temporary stop
Flue gases probe over-temperature
Temporary then definitive
Parasite flame
A11
Temporary stop
Low temperature system thermostat alarm
A77
Temporary stop
Exceeded the maximum number of RESET by remote control
(Reset possible only by boiler control panel)
A99
Definitive lockout
Temporary pending ignition
80°C flashing
Temporary stop
Water pressure switch intervention
flashing
Temporary stop
Calibration service
ADJ
Signal
Calibration installer
Chimney sweep
ACO
Signal
Vent cycle
Signal
Pre-heating enabled
P
Signal
Preheating heat request
P flashing
Signal
External probe presence
Signal
Domestic water heat request
60°C
Signal
Heating heat request
80°C
Signal
Antifreeze heat request
Signal
Flame present
Signal
4.3 Switch-off
Temporary switch-off
In the event of absence for short periods of time, set the mode selec-
tor (fig. 36) to
(OFF).
In this way (leaving the electricity and fuel supplies enabled), the
boiler is protected by the following systems:
Antifreeze: when the temperature of the water in the boiler drops
below 5°C the circulator starts and, if necessary, the burner at mini-
mum output to bring the water temperature to safety values (35°C).
During the anti-frost cycle, the symbol
(fig. 38) appears on the
digital monitor.
Circulator antiblocking: an operation cycle is activated every 24 h.
Switching off for long periods
In the event of absence for long periods of time, set the mode selec-
tor (fig. 36) to
(OFF).
Turn the main system switch OFF.
Turn off the fuel and water taps of the heating and domestic hot water
system. In this case, anti-frost device is deactivated: empty the sys-
tems, in case of risk of frost.
