Ferroli ECONCEPT SOLAR ST, Instructions For Use, Installation And Maintenance

Page: 27 / 52

ECONCEPT SOLAR ST
27 EN
cod. -- - 11/2010 (Rev. 00)
3.4 Trouble shooting
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 (detail 21 - fig. 1).
There are faults that cause permanent shutdown (marked with the letter " A "): to restore operation just 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 first eliminate the fault.
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.
List of faults DBM05C boiler card
Table. 5 - List of faults
Fault
code
Fault Possible cause Cure
A01 The burner fails to light
No gas
Check the regular gas flow to the boiler and that the air has
been eliminated from the pipes
Detection/ignition electrode fault
Check the wiring of the electrode and that it is correctly
positioned and free of any deposits
Faulty gas valve Check the gas valve and replace it if necessary
Insufficient gas supply pressure Check the gas supply pressure
Trap clogged Check the trap and clean it if necessary
A02
Flame present signal with
burner off
Electrode fault Check the ionisation electrode wiring
Card fault Check the card
A03
Overtemperature protection
activation
Heating sensor damaged
Check the correct positioning and operation of the heating
sensor
No water circulation in the system Check the circulating pump
Air in the system Vent the system
A04 Fume extraction duct safety
device activation Fault F07 generated 3 times in the last 24
hours See fault F07
A05 Fan protection activation
Fault F15 generated for 1 hour
(consecutive)
See fault F15
A06
No flame after ignition stage
(6 times in 4 min.)
Ionisation electrode fault Check the position of the ionisation electrode and replace it if
necessary
Flame unstable Check the burner
Gas valve Offset fault Check the Offset adjustment at minimum power
air/fume ducts blocked
Remove the obstruction from the flue, fume extraction and air
inlet ducts and terminals
Trap clogged Check the trap and clean it if necessary
F07 High fume temperature
Flue partially obstructed or insufficient
Check the efficiency of the flue, fume extraction ducts and
outlet terminal
Fume sensor position Check correct positioning and operation of the fume sensor
F10 Delivery sensor 1 fault
Sensor damaged
Check the wiring or replace the sensor Wiring shorted
Wiring disconnected
F11 Return sensor fault
Sensor damaged
Check the wiring or replace the sensor Wiring shorted
Wiring disconnected
F12 DHW sensor fault
Sensor damaged
Check the wiring or replace the sensor Wiring shorted
Wiring disconnected
F13 Fume sensor fault
Sensor damaged
Check the wiring or replace the sensor Wiring shorted
Wiring disconnected
F14 Delivery sensor 2 fault
Sensor damaged
Check the wiring or replace the sensor Wiring shorted
Wiring disconnected
F15 Fan fault
No 230V power supply Check the 3-pin connector wiring
Tachometric signal interrupted Check the 5-pin connector wiring
Fan damaged Check the fan