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Ferroli ATLAS D ECO 30 K 100 UNIT Instrucciones De Uso, Instalación Y Mantenimiento página 48

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4.4 Troubleshooting
Diagnostics
The boiler is equipped with an advanced self-diagnosis system. In case of a boiler fault,
the display will flash together with the fault symbol (detail 22 - fig. 1) indicating the fault
code.
There are faults that cause permanent shutdowns (marked with the letter "A"): to restore
operation, press the RESET button (detail 8 - fig. 1) for 1 second or use the RESET on
the remote timer control (optional) if installed; if the boiler does not restart it is necessary
to eliminate the fault indicated in the operation LEDs.
Other faults cause temporary shutdowns (marked with the letter "F") which are automat-
ically reset as soon as the value returns within the boiler's normal working range.
ATTENTION
From software version 23, an additional feature has been introduced to facilitate burner
calibration, i.e. flame flashing on the display to indicate that the burner is on but with in-
dication of non-optimal flame.
For the various software versions, the meanings of the symbols shown on the display
can be found in the table 3.
Table. 3- Flame symbol indications
Indication on the display and meaning
Software
Flame Off
Flame On Steady
Version
Burner off
Burner on
22
Burner off
Burner on and indication of stable flame
23
Table. 4 - List of faults
Fault
Fault
Possible cause
code
Pump blocked
Faulty electric motor
Faulty oil valve
No fuel in tank, or water on bottom
Oil line feed valves closed
Dirty filters (line-pump-nozzle)
Pump unprimed
Ignition electrodes not properly
adjusted, or dirty
Nozzle clogged, dirty or deformed
A01
Burner block
Unsuitable head and shutter adjust-
ments
Faulty electrodes or earthed
Faulty ignition transformer
Faulty electrode wires or earthed
Electrode wires deformed by high
temperature
Faulty valve or transformer electri-
cal connections
Broken pump-motor joint
Pump inlet connected to return pipe
Faulty photoresistance
Dirty photoresistance
Photoresistance short circuit
Flame present sig-
A02
Extraneous light strikes the photore-
nal with burner off
sistance
Heating sensor damaged
Overtemperature
A03
protection activa-
tion
No water circulation in the system
Air in the system
Card parameter
A04
Wrong card parameter setting
fault
Preheater fault (the
contact does not
F07
Wiring disconnected
close in 120 sec-
onds)
Card parameter
F09
Wrong card parameter setting
fault
48
EN
ATLAS D ECO 30/42 K 100/130 UNIT
Fault
code
F10
F11
F12
F14
F16
F34
Flame Flashing
F35
-
F37
Burner on with indication of NOT
optimal flame
F39
Cure
Replace
F40
Replace
Replace
A41
Refill with fuel or suck the
water
F42
Open
Clean
F47
Prime and find the cause of
unpriming
Adjust or clean them
Replace
Adjust
Replace
Replace
Replace
Replace and protect
Check
Replace
Correct the connection
Replace
Clean the photoresistance
Replace the photoresistance
Eliminate the light source
Check the correct positioning
and operation of the heating
sensor
Check the circulating pump
(See table table 4)
Vent the system
Check the card parameter and
modify it if necessary
Check the wiring
Check the card parameter and
modify it if necessary
cod. 3541Q564 - Rev. 01 - 11/2022
Fault
Possible cause
Sensor damaged
Delivery sensor 1
Wiring shorted
fault
Wiring disconnected
Sensor damaged
DHW sensor fault
Wiring shorted
Wiring disconnected
Card parameter
Wrong card parameter setting
fault
Sensor damaged
Delivery sensor 2
Wiring shorted
fault
Wiring disconnected
Card parameter
Wrong card parameter setting
fault
Supply voltage
Electric mains trouble
under 170V.
Faulty mains fre-
Electric mains trouble
quency
Pressure too low
Incorrect system
water pressure
Sensor damaged
Probe damaged or wiring shorted
External probe fault
Probe disconnected after activating
the sliding temperature
Incorrect system
Pressure too high
water pressure
Delivery sensor not inserted in
Sensor positioning
boiler shell
Heating sensor
Sensor damaged
fault
System water pres-
Wiring disconnected
sure sensor fault
Cure
Check the wiring or replace
the sensor
Check the wiring or replace
the sensor
Check the card parameter and
modify it if necessary
Check the wiring or replace
the sensor
Check the card parameter and
modify it if necessary
Check the electrical system
Check the electrical system
Fill the system
Check the sensor
Check the wiring or replace
the sensor
Reconnect the external sensor
or disable the sliding tempera-
ture
Check the system
Check the safety valve
Check the expansion tank
Check the correct positioning
and operation of the heating
sensor
Replace the sensor
Check the wiring

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