Ferroli Boiler Error Codes
Ferroli iBoiler Error Codes
Fault Code
Possible Cause
A01
Ignition error – possible electrode fault or power too low, no gas or excessive condensate level
A02
Electrode or card error
A03
Electrode or card error
A03
Heating sensor damaged, no water circulation or air in system
F04
Wrong card parameter setting
F05
Air pressure switch contact error – wrong flue baffle obstructed or not correctly sized
A06
No flame after the ignition phase – low pressure in gas system burner minimum pressure setting
F07
Air pressure switch error – contacts closed on activation of fan
A09
Gas valve error – wiring could be disconnected or error with gas valve
F10
Delivery sensor error, sensor damaged wiring shorted or disconnected
F11
Domestic hot water (DHW) sensor error – sensor damaged, wiring shorted or disconnected
A15
Fault F05 generated 5 times within the last 24 hours – possible error with the air pressure switch
A16
Gas valve error – wiring disconnected or faulty gas valve
A23
Card parameter error – possibly wrong card parameter setting
A24
Card parameter error – possibly wrong card parameter setting
F34
Supply voltage under 170V – electric mains error
F35
Faulty mains frequency – electric mains error
F37
Error with system water pressure, possible pressure too low or water pressure switch is damaged
F43
Exchanger protection intervention – could be because no system water circulation or there’s air in the system
F50
Controller DBM23B error – controller could have an internal error
F51
Controller DBM23B error – controller could have an internal error
Ferroli Bluehelix Tech Error Codes
Fault Code
System Behaviour
Possible Cause
A01
No burner ignition
No gas or ignition – issue with detection electrode, faulty gas valve or insufficient gas supply pressure
A02
Flame signal present with burner off
Electrode error or PCB error
A05
Fan error
No 230V power supply or tachometric signal interrupted fan damaged or out of balance
A06
No flame after the ignition phase
Ionisation electrode fault – flame unstable or air/flue ducts obstructed or condensate trap or pipes blocked
F07 – F14 – A07
High flue gas temperature
The flue gas probe detects excessive temperature
F08 – A08
Overtemperature protection intervention
Heating sensor damaged – no water circulation in the system or air in the system
F09 – A09
Overtemperature protection intervention
Return sensor damaged – no water circulation in the system or air in the system
F10 – A10
Flow sensor error
Sensor damaged – wiring shorted or wiring disconnected
F11 – A11
Return sensor fault
Sensor damaged – wiring shorted or wiring disconnected
F12
DHW sensor error
Sensor damaged – wiring shorted or wiring disconnected
F13 – A13
Flue probe fault
Probe damaged – wiring shorted or wiring disconnected
A14
Flue extraction duct safety device intervention
Fault F07 generated 3 times in the last 24 hours
F34
Supply voltage under 170V
Electric mains trouble
F37
Incorrect system water pressure
Pressure too low – water pressure switch either damaged, blocked or not connected
F39
Optional external probe error
Probe damaged or wiring shorted – probe disconnected after activating the outside temperature mode
F41
Activation of maximum ELTA T protection
Heating sensor damaged, return sensor damaged, no water circulation as air in the system
F42 – A42
Sensor control protection activation
Heating sensor damaged, return sensor damaged or disconnected
F43
Exchanger protection intervention
No system water circulation – air in system
A23 – A24 – A26 – F15 – F20 – F21 – F40 – F47 – F50 – F51 – F53
Printed circuit board (PCB) parameter fault
Wrong PCB parameter setting
F56 – A56
Calibration error / calibration procedure not completed
Incorrect parameters electrode damaged or not correctly positioned
F61 – A61
Printed circuit board (PCB) AGC01 error
PCB AGC01 internal error
A54 – A55 – A63
Printed circuit board (PCB) AGC01 fault
PCB AGC01 fault
F67
–
Boiler chip card (BCC) service key connected
F68 – A68
Boiler chip card (BCC) service key fault
Error loading BCC service key file
A62
No communication between PCB and gas valve
PCB not connected – valve damaged, replace valve
A64
Maximum number of consecutive resets exceeded
Maximum number of consecutive resets exceeded
F66
–
Firmware not loaded successfully
Ferroli Modena HE System Error Codes
Fault Code
Possible Cause
A01
No burner ignition – possible electrode error, defective gas valve or incorrect inlet gas pressure
A02
Flame detected with the burner off – electrode defective main board defective
A03
High limit protection – possible flow temperature sensor not active or incorrectly located, no system circulation
A04
Flue gas fault – fault F07 happened 3 times in the last 24 hours
A05
Fan error – tachometer signal interrupted for 1 hour or longer
A06
No flame after the ignition phase – electrode error, flame unstable, incorrect valve gas offset or flue gas circuit obstructed
A41
Flow sensor error – sensor disconnected
A42
Flow sensor error – sensor damaged
F07
High fume temperature – the exchanger probe detects an excessive temperature
F10
Flow sensor error – sensor damaged, short circuited, sensor damaged or wiring broken
F11
Return sensor error – t-sensor damaged, short circuited, sensor damaged or wiring broken
F13
Exchanger probe error – t-sensor damaged, short circuited, sensor damaged or wiring broken
F14
Flow sensor error – t-sensor damaged, short circuited, sensor damaged or wiring broken
F15
Fan problem – tachometer signal interrupted fan connection or damaged debris in fan. You need to check and clean fan debris
F34
Supply voltage under 170v – electric supply error
F35
Irregular mains frequency – electric supply problem
F37
Incorrect system water pressure error – possible sensor damaged or pressure too low
F43
Exchanger protection activation – no system circulation air in system
F52
Flow sensor – fault sensor damaged
A61
Controller ABM03B error – controller has an internal error
A62
No communication between controller and gas valve – controller not connected or valve damaged
A63 / A64 / F66
Controller ABM03B error – controller internal error
Ferroli Modena HE Combi Error Codes
Fault Code
Possible Cause
A01
No burner ignition – possibly no gas, detection or ignition electrode fault, defective gas valve, incorrect inlet gas pressure
A02
Flame detected with the burner off – possibly caused by ionisation, defective electrode or main board defective. Check the printed circuit board (PCB) or ionizing electrode wiring
A03
High limit protection – flow temperature sensor not active, incorrectly located or no system circulation. Check the position of the flow sensor or check pump and radiator valves
A04
Flue gas fault – could be because F07 happened 3 times in the last 24 hours – check the flue
A05
Fan problem – tachometer signal interrupted for 1 hour or longer – check the wiring and the fan
A06
No flame after ignition phase – possible causes: detection electrode fault, flame unstable, incorrect valve gas offset, flue gas circuit
A41
Flow sensor disconnected – check the correct positioning and operation of the flow sensors
A42
Flow sensor fault – sensor needs changing
F07
High fume temperature – the exchanger probe detects an excessive temperature for over 2 minutes – check the exchanger.
F10
Flow sensor fault – possible causes: sensor damaged, short circuited or wiring broken check the wiring
F11
Return sensor fault – sensor wiring shorted or broken – check the wiring
F12
Domestic hot water (DHW) sensor fault – sensor damaged, wiring shorted or wiring disconnected – check the wiring
F13
Exchange probe fault – wiring shorted or wiring broken – check wiring
F14
Fan problem – tachometer signal interrupted fan connection. Fan damaged or debris in fan – check the wiring, the fan and clean debris
F15
Supply voltage under 170v – electric supply problem – the electrical system needs checking
F34
Irregular mains frequency – possible electric supply problem – the electrical system needs checki
F35
Incorrect system water pressure – possible cause is pressure too low or sensor damaged – the system may need filling or check the sensor
F37
External probe fault sensor damaged or short circuited – check the wiring
F39
Exchanger protection activation – possibly caused by no system circulation, air in the system or sensor damaged
F43
Flow sensor fault – sensor damaged – sensor needs changing
F52
Controller 041049G0 fault – controller internal error
A61
No communication between controller and gas valve controller – could not be connected or valve damaged
A62
Controller 041049G – internal error
A63 / A64 / F66
Controller DBM12 fault
Ferroli Discontinued Boiler Error Codes
DOMIcondens HE 26 C -
OPTIMAX HE PLUS 31C boiler -
OPTIMAX HE PLUS 38C boiler.
Boilers
Fault Code
System Behaviour
DOMIcondens HE 26 C / OPTIMAX HE PLUS 31C
A01
No burner ignition
OPTIMAX HE PLUS 38C
A01
The burner fails to light
DOMIcondens HE 26 C / OPTIMAX HE PLUS 31C boiler / OPTIMAX HE PLUS 38C
A02
Flame present signal with burner off, possible electrical fault
DOMIcondens HE 26 C / OPTIMAX HE PLUS 31C boiler / OPTIMAX HE PLUS 38C
A03
Over temperature protection activation
DOMIcondens HE 26 C / OPTIMAX HE PLUS 31C
A04
Fume thermostat fault
OPTIMAX HE PLUS 38C
A04
Fume extraction duct safety device activation
OPTIMAX HE PLUS 38C
A05
Fan protection activated
DOMIcondens HE 26 C / OPTIMAX HE PLUS 31C boiler / OPTIMAX HE PLUS 38C
A06
No flame after the ignition phase
OPTIMAX HE PLUS 31C boiler / OPTIMAX HE PLUS 38C
F07
High fume temperature
DOMIcondens HE 26 C
F07
Card parameter
DOMIcondens HE 26 C
A09
Gas value fault
DOMIcondens HE 26 C / OPTIMAX HE PLUS 31C boiler / OPTIMAX HE PLUS 38C
F10
Delivery sensor 1 fault
DOMIcondens HE 26 C
F11
DHW sensor fault
OPTIMAX HE PLUS 31C boiler / OPTIMAX HE PLUS 38C
F11
Return sensor fault
OPTIMAX HE PLUS 31C boiler / OPTIMAX HE PLUS 38C
F13
Fume sensor fault
DOMIcondens HE 26 C / OPTIMAX HE PLUS 31C boiler / OPTIMAX HE PLUS 38C
F14
Delivery sensor 2 fault
OPTIMAX HE PLUS 31C boiler / OPTIMAX HE PLUS 38C
F15
Fan fault
DOMIcondens HE 26 C
A16
Gas valve fault
DOMIcondens HE 26 C
F20
Combustion control fault
DOMIcondens HE 26 C
A21
Poor combustion fail
DOMIcondens HE 26 C
A23
Set nominal system water pressure not reached within 4 minutes
DOMIcondens HE 26 C
A24
4 fillings within 24 hours
DOMIcondens HE 26 C / OPTIMAX HE PLUS 31C boiler / OPTIMAX HE PLUS 38C
A34
Supply voltage under 170V / 180V
DOMIcondens HE 26 C
A35
Faulty mains frequency
OPTIMAX HE PLUS 31C boiler / OPTIMAX HE PLUS 38C
A35
Mains frequency anomaly
DOMIcondens HE 26 C / OPTIMAX HE PLUS 31C boiler / OPTIMAX HE PLUS 38C
A37
Incorrect system water pressure
DOMIcondens HE 26 C / OPTIMAX HE PLUS 31C boiler / OPTIMAX HE PLUS 38C
A39
External probe fault
DOMIcondens HE 26 C / OPTIMAX HE PLUS 31C boiler / OPTIMAX HE PLUS 38C
A41
Sensor positioning
DOMIcondens HE 26 C / OPTIMAX HE PLUS 31C boiler / OPTIMAX HE PLUS 38C
F42
Heating sensor fault
DOMIcondens HE 26 C
A43
Exchange protection activation
DOMIcondens HE 26 C
A50
Gas valve fault
DOMIcondens HE 26 C
A51
Poor combustion fault
OPTIMAX HE PLUS 31C boiler / OPTIMAX HE PLUS 38C
A62
No communication between electronic controller and gas valve