Troubleshooting - Ferroli ATLAS D ECO 34 COND SI UNIT Instrucciones De Uso, Instalación Y Mantenimiento

ATLAS D ECO 34 COND SI UNIT
Cleaning the fume recuperator
To clean the fume recuperator:
• Remove the cover B.
• Remove the fume recuperator closing covers C.
• Carefully clean the inside of the recuperator using an aspirator.
• If particularly dirty, a suitable device for spraying water inside can be used. In this
case, make sure large amounts of water do not come into contact with the cast iron
elements in the smoke chamber. Run the water through the condensate drain D af-
ter disconnecting the trap.
fig. 40 - Cleaning the recuperator
Positioning of combs
After cleaning the recovery unit make sure the combs are positioned correctly, as shown
in fig. 41. Tighten the nuts on the compressor disk "A" respecting the torque setting of
0.6 Nm. If a torque wrench is unavailable, check that there is a fume passage of 1 mm
between the coils.
60°
60°
60°
fig. 41 - Positioning of combs
60°
60°
60°
cod. 3541Q474 - Rev. 00 - 12/2021

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 1.
Table. 5- 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. 6 - 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 Preheater fault
contact does not
F07
close in 120 sec-
Wiring disconnected
onds)
Card parameter
F09 Wrong card parameter setting
fault
Flame Flashing
-
Burner on with indication of NOT
optimal flame
Cure
Replace
Replace
Replace
Refill with fuel or suck the
water
Open
Clean
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 7)
Vent the system
Check the card parameter and
modify it if necessary
Check the preheater
Check the wiring
Check the card parameter and
modify it if necessary
41
EN