15
ENGLISH
BOILER STATUS
DISPLAY
RED LED
YELLOW LED
GREEN LED
TYPES OF
ALARMS
Off status(OFF)
OFF
fl
ashing 0.5 on/
3.5 off
None
Stand-by
-
fl
ashing 0.5 on/
3.5 off
Signal
ACF alarm lockout module
A01
on
De
fi
nitive lockout
ACF electronics fault alarm
Limit thermostat alarm
A02
fl
ashing 0.5 on/
0.5 off
De
fi
nitive lockout
Tacho fan alarm
A03
on
De
fi
nitive lockout
Water pressure switch alarm
A04
on
on
De
fi
nitive lockout
NTC domestic water fault (only when con-
nected to an external storage tank with probe)
A06
fl
ashing 0.5 on/
0.5 off
fl
ashing 0.5 on/
0.5 off
Signal
NTC heating outlet fault
A07
on
Temporary stop
Heating outlet probe overtemperature
Temporary then
de
fi
nitive
Outlet/return line probe differential alarm
De
fi
nitive lockout
NTC heating return line fault
A08
on
Temporary stop
Heating return line probe overtemperature
Temporary then
de
fi
nitive
Outlet/return line probe differential alarm
De
fi
nitive lockout
Cleaning the primary heat exchanger
A09
fl
ashing 0.5 on/
0.5 off
fl
ashing 0.5 on/
0.5 off
Signal
NTC
fl
ue gases fault
Temporary stop
Flue gases probe overtemperature
on
De
fi
nitive lockout
False
fl
ame
A11
fl
ashing 0.2 on/
0.2 off
Temporary stop
Low temperature system thermostat alarm
A77
on
Temporary stop
Temporary pending ignition
fl
ashing 0.5 on/
0.5 off
Temporary stop
Water pressure switch intervention
fl
ashing 0.5 on/
0.5 off
Temporary stop
Calibration service
ADJ
fl
ashing 0.5 on/
0.5 off
fl
ashing 0.5 on/0.5
off
fl
ashing 0.5 on/
0.5 off
Signal
Calibration installer
Chimney sweep
ACO
fl
ashing 0.5 on/0.5
off
Signal
Vent cycle
fl
ashing 0.5 on/
1.0 off
fl
ashing 0.5 on/1.0
off
fl
ashing 0.5 on/
1.0 off
Signal
External probe presence
Signal
Domestic water heat request
60
°C
Signal
Heating heat request
80
°C
Signal
Antifreeze heat request
Signal
Flame present
on
Signal
Summary of Contents for CIAO GREEN R.S.I
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