Troubleshooting - Ferroli ECONCEPT 51 A Instrucciones De Uso, Instalación Y Mantenimiento

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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.
Table of faults
Table. 5 - List of faults
Fault
Fault
Possible cause
code
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
46
EN
3
1
2
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
cod. 3541H790 - Rev. 00 - 12/2015
ECONCEPT 51 A
Fault
Fault
Possible cause
code
Heating sensor damaged
Overtemperature protec-
A03
tion activation
No water circulation in the system Check the circulating pump
Air in the system
Fume extraction duct
Fault F07 generated 3 times in the
A04
safety device activation
last 24 hours
Fault F15 generated for 1 hour
A05
Fan protection activated
(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 detects an
F07
High fume temperature
excessive temperature for over 2
minutes
The exchanger probe detects an
F07
High fume temperature
excessive temperature 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
F15
Fan fault
Tachometric signal interrupted
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 damaged or
pressure
not connected
Probe damaged or wiring shorted Check the wiring or replace the sensor
F39
External probe fault
Probe disconnected after activat-
ing the sliding temperature
Delivery sensor disconnected from
A41
Sensor positioning
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
A61
Controller DBM12 fault
Controller DBM12 internal error
No communication
Controller not connected
A62
between controller and
Valve damaged
gas valve
A63
A64
Controller DBM12 fault
Controller DBM12 internal error
A65
F66
Cure
Check the correct positioning and opera-
tion of the heating sensor
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
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.

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