Ferroli ATLAS D ECO 34 COND UNIT Instrucciones De Uso, Instalación Y Mantenimiento página 42

Positioning of combs
After cleaning the recovery unit make sure the combs are positioned correctly, as shown
in fig. 39. 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. 39 - Positioning of combs
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 the cause permanent shutdowns (marked with the letter "A"): to restore
operation, just 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 nec-
essary 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.
42
EN
60°
60°
60°
cod. 3541Q460 - Rev. 00 - 10/2015
ATLAS D ECO COND UNIT
Table. 3 - 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
Burner block Unsuitable head and shutter adjustments Adjust
A01
Faulty electrodes or earthed
Faulty ignition transformer
Faulty electrode wires or earthed
Electrode wires deformed by high tem-
perature
Faulty valve or transformer electrical con-
nections
Broken pump-motor joint
Pump inlet connected to return pipe
Faulty photoresistance
Dirty photoresistance
Photoresistance short circuit
Flame present signal
A02
Extraneous light strikes the photoresist-
with burner off
ance
Heating sensor damaged
Overtemperature pro-
A03
tection activation No water circulation in the system
Air in the system
Card parameter fault Wrong card parameter setting
A04
Preheater fault (the Preheater fault
contact does not close
F07
Wiring disconnected
in 120 seconds)
Card parameter fault Wrong card parameter setting
F09
Sensor damaged
Delivery sensor 1 fault Wiring shorted
F10
Wiring disconnected
Sensor damaged
DHW sensor fault Wiring shorted
F11
Wiring disconnected
Card parameter fault Wrong card parameter setting
F12
Sensor damaged
Delivery sensor 2 fault Wiring shorted
F14
Wiring disconnected
Card parameter fault Wrong card parameter setting
F16
Supply voltage under
Electric mains trouble
F34
170V.
Faulty mains fre-
Electric mains trouble
F35
quency
Pressure too low
Incorrect system water
F37
pressure
Sensor damaged
Probe damaged or wiring shorted
External probe fault
F39
Probe disconnected after activating the
sliding temperature
Incorrect system water
Pressure too high
F40
pressure
Sensor positioning Delivery sensor not inserted in boiler shell
A41
Heating sensor fault Sensor damaged
F42
System water pressure
Wiring disconnected
F47
sensor fault
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
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 6)
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
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 temperature
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