Light Signals And Faults; To Restore Operation (Deactivate Alarms) - Riello Caldariello Condens 25 KIS E Installer And User Manual

4.3 Light signals and faults

The control panel has three LEDs that indicate the boiler operating status:
BOILER STATUS
Off status(OFF)
Stand-by
ACF alarm lockout module
ACF electronics fault alarm
Limit thermostat alarm
Tacho fan alarm
Water pressure switch alarm
NTC domestic water fault
NTC heating outlet fault
Heating outlet probe overtemperature
Outlet/return line probe differential alarm
NTC heating return line fault
Heating return line probe overtemperature
Outlet/return line probe differential alarm
Cleaning the primary heat exchanger
NTC flue gases fault
Flue gases probe overtemperature
False flame
Low temperature system thermostat alarm
Temporary pending ignition
Water pressure switch intervention
Calibration service
Calibration installer
Chimney sweep
Vent cycle
Preheating active function
Preheating heat request
External probe presence
Domestic water heat request
Heating heat request
Antifreeze heat request
Flame present

To restore operation (deactivate alarms):

Faults A 01-02-03
Position the function selector to
the required position.
If the reset attempts do not reactivate the boiler, contact the Technical As-
sistance Centre.
Fault A04
In addition to the fault code, the digital display shows the symbol
Check the pressure value indicated by the water gauge:
if it is less than 0.3 bar, position the function selector to
adjust the filling tap (B-fig. 17) until the pressure reaches a value between
1 and 1.5 bar.
Then position the mode selector to the desired position.
The boiler will perform one purge cycle lasting approximately 2 minutes.
If pressure drops are frequent, request the intervention of the Technical
Assistance Service.
Fault A06
The boiler operates normally but cannot reliably maintain a constant do-
mestic hot water temperature, which remains set at around 50°C. Contact
the Technical Assistance Centre.
Fault A07
Contact the Technical Assistance Centre.
Fault A08
Contact the Technical Assistance Centre.
DISPLAY
OFF
-
A01
flashing 0.5 on/0.5 off
A02
A03
A04
A06 flashing 0.5 on/0.5 off
A07
A08
flashing 0.5 on/0.5 off
A09
flashing 0.2 on/0.2 off
A11
A77
flashing 0.5 on/0.5 off
ADJ
ACO
flashing 0.5 on/1.0 off
flashing
60
°C
80
°C
(OFF), wait 5-6 seconds then set it to
(OFF) and
RED LED YELLOW LED
on
on
on
on
on
on
on
flashing 0.5 on/0.5 off
flashing 0.5 on/0.5 off
flashing 0.5 on/1.0 off
on
Fault A09 with fixed red LED lit
Position the function selector to
the required position.
If the reset attempts do not reactivate the boiler, request the intervention of
the Technical Assistance Service.
Fault A09 with flashing red and green LEDs
The boiler is equipped with an auto-diagnostic system which, based on the
total number of hours in certain operating conditions, can signal the need
.
to clean the primary exchanger (alarm code 09 with flashing red and green
LEDs and flue gas meter >2,500).
Once the cleaning operation has been completed, using the special kit
supplied as an accessory, the total hour meter will need to be reset to zero
as follows:
- switch off the power supply
- remove the housing
- loosen the fixing screw then turn the instrument panel
- loosen the fixing screws on the cover (F) to access the terminal board
(fig. 16)
- while the boiler is powered up, press and hold the CO button (fig. 26) for
at least 4 seconds, to check the meter has been reset, power down then
power up the boiler; the meter reading is shown on the monitor after the
"-C-" sign.
Live electrical parts (230 V AC).
TYPES OF
GREEN LED
ALARMS
flashing 0.5 on/3.5 off None
flashing 0.5 on/3.5 off Signal
Definitive lockout
Definitive lockout
Definitive lockout
on Definitive lockout
flashing 0.5 on/0.5 off Signal
Temporary stop
Temporary then
definitive
Definitive lockout
Temporary stop
Temporary then
definitive
Definitive lockout
Signal
flashing 0.5 on/0.5 off
Temporary stop
Definitive lockout
Temporary stop
Temporary stop
flashing 0.5 on/0.5 off Temporary stop
flashing 0.5 on/0.5 off Temporary stop
flashing 0.5 on/0.5 off Signal
Signal
flashing 0.5 on/1.0 off Signal
Signal
Signal
Signal
Signal
Signal
Signal
on Signal
(OFF), wait 5-6 seconds then set it to
ENGLISH
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