Boiler Cleaning - Ferroli ATLAS D 30 K 100 UNIT Instructions D'utilisation, D'installation Et D'entretien

Burner disassembly
• Remove the casing (B) by undoing the screw (A), thus making all the accessories
accessible.
• Undo the nut (C) and position the burner in order to access the nozzle.
C
fig. 32 - Burner disassembly

Boiler cleaning

1. Disconnect the power supply to the boiler.
2. Remove the burner (see previous section).
3. Remove the top panel.
4. Remove the cleaning door "A", undoing the nuts "B".
5. Open the burner door "C" after undoing the nuts "D".
6. Clean the inside of the boiler and the entire path of exhaust fumes using a tube
brush, aspirator or compressed air.
7. Close the doors.
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.
40
EN
A
B
C
A
B
D
fig. 33
cod. 3540S756 - Rev. 01 - 03/2015
ATLAS D 30 K 100 UNIT
Table. 4 - List of faults
Fault
Fault
code
A01 Burner block
A02 Flame present signal with burner off
Overtemperature protection activa-
A03
tion
A04 Card parameter fault
Preheater fault (the contact does not
F07
close in 120 seconds)
F09 Card parameter fault
F10 Delivery sensor 1 fault
F11 DHW sensor fault
F12 Card parameter fault
F14 Delivery sensor 2 fault
F16 Card parameter fault
F34 Supply voltage under 170V.
F35 Faulty mains frequency
F37 Incorrect system water pressure
F39 External probe fault
F40 Incorrect system water pressure
A41 Sensor positioning
F42 Heating sensor fault
F47 System water pressure sensor fault
Possible cause Cure
Pump blocked Replace
Faulty electric motor Replace
Faulty oil valve Replace
No fuel in tank, or water on bottom Refill with fuel or suck the
water
Oil line feed valves closed Open
Dirty filters (line-pump-nozzle) Clean
Pump unprimed Prime and find the cause
of unpriming
Ignition electrodes dirty or not prop- Adjust or clean them
erly adjusted
Nozzle clogged, dirty or deformed Replace
Unsuitable head and shutter adjust- Adjust
ments
Faulty electrodes or earthed Replace
Faulty ignition transformer Replace
Faulty electrode wires or earthed Replace
Electrode wires deformed by high Replace and protect
temperature
Incorrect transformer or valve elec- Check
trical connections
Broken pump-motor joint Replace
Pump inlet connected to return pipe Correct the connection
Faulty photoresistance Replace
Dirty photoresistance Clean the photoresistance
Replace the photoresist-
Photoresistance short circuit
ance
Extraneous light strikes the photore-
Eliminate light source
sistance
Check the correct position-
Heating sensor damaged ing and operation of the
heating sensor
Check the circulating
No water circulation in the system
pump
Air in the system Vent the system
Check the card parameter
Wrong card parameter setting
and modify it if necessary
Preheater fault Check the preheater
Wiring disconnected Check the wiring
Check the card parameter
Wrong card parameter setting
and modify it if necessary
Sensor damaged
Check the wiring or
Wiring shorted
replace the sensor
Wiring disconnected
Sensor damaged
Check the wiring or
Wiring shorted
replace the sensor
Wiring disconnected
Check the card parameter
Wrong card parameter setting
and modify it if necessary
Sensor damaged
Check the wiring or
Wiring shorted
replace the sensor
Wiring disconnected
Check the card parameter
Wrong card parameter setting
and modify it if necessary
Check the electrical sys-
Electric mains trouble
tem
Check the electrical sys-
Electric mains trouble
tem
Pressure too low Fill the system
Sensor damaged Check the sensor
Check the wiring or
Probe damaged or wiring shorted
replace the sensor
Probe disconnected after activating Reconnect the external
the sliding temperature probe or disable the sliding
temperature
Check the system
Pressure too high Check the safety valve
Check the expansion tank
Check the correct position-
Delivery sensor not inserted in
ing and operation of the
boiler shell
heating sensor
Sensor damaged Replace the sensor
Wiring disconnected Check the wiring