Boiler Cleaning - Ferroli ATLAS 25 K 100 UNIT Instrucciones De Uso, Instalación Y Mantenimiento

Boiler cleaning

1. Disconnect the power supply to the boiler.
2. Remove the burner (see preceding section).
3. Remove the upper panel.
4. Remove the cleaning door "A" by 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, exhauster or compressed air.
7. Then close the doors.
4.4 Troubleshooting
Diagnostics
The boiler has 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.
54
EN
C
A
B
D
fig. 35
cod. 3541I360 - Rev. 02 - 04/2018
ATLAS 25 K 100 UNIT
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
Unsuitable head and shutter adjust-
A01 Burner block ments
Faulty electrodes or earthed
Faulty ignition transformer
Faulty electrode wires or earthed
Electrode wires deformed by high
temperature
Faulty valve or transformer electrical
connections
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
with burner off
photoresistance
Heating sensor damaged
Overtemperature
A03
protection activation No water circulation in the system
Air in the system
A04 Card parameter fault Wrong card parameter setting
Preheater fault (the
F07 contact does not close Wiring disconnected
in 120 seconds)
F09 Card parameter fault Wrong card parameter setting
Sensor damaged
F10 Delivery sensor 1 fault Wiring shorted
Wiring disconnected
Sensor damaged
F11 DHW sensor fault Wiring shorted
Wiring disconnected
F12 Card parameter fault Wrong card parameter setting
Sensor damaged
F14 Delivery sensor 2 fault Wiring shorted
Wiring disconnected
F16 Card parameter fault Wrong card parameter setting
Supply voltage under
F34 Electric mains trouble
170V.
Faulty mains
F35 Electric mains trouble
frequency
Pressure too low
Incorrect system water
F37
Water pressure switch damaged or not
pressure
connected
Probe damaged or wiring shorted
F39 External probe fault
Probe disconnected after activating the
sliding temperature
F40 Card parameter fault Wrong card parameter setting
F40 Card parameter fault Wrong card parameter setting
F40 Card parameter fault Wrong card parameter setting
Delivery sensor not inserted in boiler
A41 Sensor positioning
shell
F42 Heating sensor fault Sensor damaged
F47 Card parameter fault Wrong card parameter setting
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 table 5)
Vent the system
Check the card parameter and modify
it if necessary
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 card parameter and modify
it if necessary
Check the card parameter and modify
it if necessary
Check the card parameter and modify
it if necessary
Check the correct positioning and
operation of the heating sensor
Replace the sensor
Check the card parameter and modify
it if necessary