Opening The Casing; Combustion Analysis; Troubleshooting Diagnostics - Ferroli ECONCEPT 51 A Instructions For Use, Installation And Maintenance

Opening the casing

To open the boiler casing (fig. 31):
1. Undo the screws (1)
2. Lift the casing (2)
3. Turn and remove the casing (3)
2
1
fig. 31 - Opening the casing

Combustion analysis

Combustion can be analysed through the air sampling point (detail 2) and fume sam-
pling point (detail 1) shown in fig. 32.
To take the measurement, it is necessary to:
1. Open the air and fume sampling points
2. Insert the probes
3. Press the "+" and "-" buttons for 5 seconds to activate the TEST mode
4. Wait 10 minutes for the boiler to stabilise
5. Take the measurement
For natural gas the CO reading must be between 8.7 and 9%.
2
For LPG the CO reading must be between 9.5 and 10%.
2
Analyses made with an unstabilised boiler can cause measurement errors.
A
2
1
fig. 32 - Combustion analysis
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 20 - 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 op-
tional remote timer control if installed; if the boiler fails to start, it is necessary to firstly
eliminate the fault.
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.
44
EN
3
1
2
cod. 3540S566 - Rev. 01 - 02/2015
Table of faults
Table. 5 - List of faults
Fault code Fault Possible cause
No gas
Ignition/detection electrode
fault
A01 No burner ignition
Faulty gas valve
Insufficient gas supply
pressure
Trap blocked
Electrode fault
Flame present signal with
A02
burner off
Card fault
Heating sensor damaged
Overtemperature protec-
A03 No water circulation in the
tion activation
system
Air in the system
Fume extraction duct Fault F07 generated 3
A04
safety device activation times in the last 24 hours
Fault F15 generated for 1
A05 Fan protection activated
hour (consecutive)
Ionisation electrode fault
Flame unstable
No flame after ignition Gas valve Offset fault
A06 stage (6 times in 4 min-
utes)
air/fume ducts obstructed
Trap blocked
The exchanger probe
F07 High fume temperature detects an excessive tem-
perature for over 2 minutes
The exchanger probe
F07 High fume temperature detects an excessive tem-
perature for over 2 minutes
Sensor damaged
F10 Delivery sensor 1 fault Wiring shorted
Wiring disconnected
Sensor damaged
F11 Return sensor fault Wiring shorted
Wiring disconnected
Sensor damaged
F12 DHW sensor fault Wiring shorted
Wiring disconnected
Probe damaged
F13 Exchanger probe fault Wiring shorted
Wiring disconnected
Sensor damaged
F14 Delivery sensor 2 fault Wiring shorted
Wiring disconnected
No 230V power supply
Tachometric signal inter-
F15 Fan fault
rupted
Fan damaged
Supply voltage under
F34 Electric mains trouble
170V
F35 Faulty mains frequency Electric mains trouble
Pressure too low
Incorrect system water
F37
Water pressure switch
pressure
damaged or not connected
Probe damaged or wiring
shorted
F39 External probe fault
Probe disconnected after
activating the sliding tem-
perature
Delivery sensor discon-
A41 Sensor positioning
nected from the pipe
A42 Heating sensor fault Sensor damaged
F42 Heating sensor fault Sensor damaged
Sensor damaged
Cascade temperature sen-
F50 Wiring shorted
sor fault
Wiring disconnected
Controller DBM12 internal
A61 Controller DBM12 fault
error
No communication Controller not connected
A62 between controller and
Valve damaged
gas valve
A63
A64 Controller DBM12 internal
Controller DBM12 fault
A65 error
F66
ECONCEPT 51 A
Cure
Check the regular gas flow to the boiler
and that the air has been eliminated from
the pipes
Check the wiring of the electrode and that
it is correctly positioned and free of any
deposits
Check the gas valve and replace it if nec-
essary
Check the gas supply pressure
Check the trap and clean it if necessary
Check the ionisation electrode wiring
Check the card
Check the correct positioning and opera-
tion of the heating sensor
Check the circulating pump
Vent the system
See fault F07
See fault F15
Check the position of the ionisation elec-
trode and replace it if necessary
Check the burner
Check the Offset adjustment at minimum
power
Remove the obstruction from the flue,
fume extraction ducts and air inlet and ter-
minals
Check the trap and clean it if necessary
Check the exchanger
Check the exchanger
Check the wiring or replace the sensor
Check the wiring or replace the sensor
Check the wiring or replace the sensor
Check the wiring or replace the exchanger
probe
Check the wiring or replace the sensor
Check the 3-pin connector wiring
Check the 5-pin connector wiring
Check the fan
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 correct positioning and opera-
tion of the heating sensor
Replace the sensor
Replace the sensor
Check the wiring or replace the sensor
Check the earth connection and replace
the controller if necessary.
Connect the controller to the gas valve
Replace the valve
Check the earth connection and replace
the controller if necessary.