Ferroli Combi Boiler Error Codes Ferroli claims that it is the relentless consumer demand and the need to address climate change that keeps “Ferroli at the leading edge of appliance design”. Well, design may be a strong point for Ferroli boilers, but are they as reliable as they are aesthetically pleasing? If you’re reading this blog, you’re probably dubious about this claim.
Ferroli Combi Boiler Error Code Solutions
| Ferroli Boiler Error Codes | ||
| Fault Code | System Behaviour | |
| A01 | Ignition error – possible electrode fault or power too low, no gas or excessive condensate level | |
| A02 | 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 Modena HE System Error Codes | ||
| Fault Code | System Behaviour | |
| 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 | System Behaviour | |
| 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 checking | |
| 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 |