Troubleshooting - Ferroli ATLAS D Instructions D'utilisation, D'installation Et D'entretien

ATLAS D

3.4 Troubleshooting

Diagnostics
The boiler is equipped with an advanced self-diagnosis system. In case of a boiler anomaly, the display will flash to-
gether with the fault symbol (detail 22 - fig. 1) indicating the fault code.
There are faults that cause permanent shutdown (marked with the letter "A"): to restore operation press the RESET
button (detail 8 - fig. 1) for 1 second or RESET on the optional remote timer control if installed; if the boiler fails to start,
it is necessary to eliminate the fault indicated by the operation LEDs.
Other faults (marked with the letter "F") cause temporary shutdowns that are automatically reset as soon as the value
returns within the boiler's normal working range.
Table. 2 - Fault list
Fault
Fault
code
Burner shutdown
A01 (RESET ONLY OCCURS
ON THE BURNER)
Overtemperature protection
A03
activation
F07 Wiring fault
F10 Delivery sensor 1 fault
F11 DHW sensor fault
F13 Wiring fault
F14 Delivery sensor 2 fault
F34 Supply voltage under 170V.
F35 Mains frequency fault
Incorrect system water pres-
F37
sure
F39 External probe fault
Incorrect system water pres-
F40
sure
A41 Sensor positioning
F42 Heating sensor fault
System water pressure sen-
F47
sor fault
EN
Possible cause
Refer to the burner manual
Heating sensor damaged
No water circulation in the sys-
tem
Air in the system
Connector X5 not connected
Sensor damaged
Wiring shorted
Wiring disconnected
Sensor damaged
Wiring shorted
Wiring disconnected
Connector X12 not connected
Sensor damaged
Wiring shorted
Wiring disconnected
Electric mains trouble
Electric mains trouble
Pressure too low
Sensor damaged
Probe damaged or wiring
shorted
Probe disconnected after acti-
vating the sliding temperature
Pressure too high
Delivery sensor not inserted in
boiler shell
Sensor damaged
Wiring disconnected
cod. 3540G651 - 05/2008 (Rev. 00)
Cure
Check the correct positioning and operation of the
heating sensor
Check the circulating pump
Vent the system
Check the wiring
Check the wiring or replace the sensor
Check the wiring or replace the sensor
Check the wiring
Check the wiring or replace the sensor
Check the electrical system
Check the electrical system
Fill the system
Check the sensor
Check the wiring or replace the sensor
Reconnect the external probe 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
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