Ferroli Modena HE Fault Codes

Combi Natural GasLPG 27-32 kW 2012-2018 Discontinued

Replaced by: Bluehelix

All 24 fault codes

Code	Severity	Plain English	DIY
A01	High	Your boiler has tried to light several times but cannot establish a flame, meaning your heating and hot water will not work.	Yes
A02	High	Your boiler thinks it sees a flame even though it hasn't started the burner yet, which is causing it to shut down for safety.	Engineer
A03	High	Your boiler has likely overheated because the water is not circulating properly or a sensor has detected a temperature that is too high.	Yes
A04	Emergency	Your boiler has shut down because it has detected a recurring issue with how it is getting rid of waste gases.	Engineer
A05	High	Your boiler has stopped working because its internal fan is unable to communicate with the main control board, preventing the boiler from safely clearing waste gases.	Engineer
A06	High	Your boiler is struggling to keep its flame lit after it fires up, meaning it cannot stay on long enough to heat your home or water.	Engineer
A41	High	Your boiler has stopped working because it cannot properly detect the temperature or movement of the water inside the system.	Engineer
A42	High	Your boiler has detected an issue with the sensor that measures water temperature as it leaves the unit, which is preventing it from heating correctly.	Engineer
A61	High	Your boiler's main control unit cannot talk to the gas valve, meaning it isn't receiving the signal it needs to burn fuel and provide warmth.	Engineer
A62	High	Your boiler's internal computer has detected an electronic fault and has stopped working to protect itself.	Engineer
A63 / A64 / F66	High	Your boiler's main internal computer has developed a serious communication or hardware fault and cannot control the system safely.	Engineer
F07	High	Your boiler has shut down because it has detected that the internal exhaust gases are becoming too hot, which can indicate a blockage or a build-up of debris inside the main heat exchanger.	Engineer
F10	High	Your boiler's internal thermometer that measures the temperature of the water leaving the unit has stopped working correctly, which means the system cannot safely regulate heat.	Engineer
F11	Unknown	Return sensor fault – sensor wiring shorted or broken – check the wiring	Engineer
F12	Medium	Your boiler has lost its connection to the sensor that monitors your hot water temperature, which means you will likely experience cold showers until it is fixed.	Engineer
F13	High	Your boiler's internal temperature sensor is failing to communicate correctly with the main control board, preventing the system from heating up.	Engineer
F14	High	Your boiler has detected a problem with the internal fan, meaning it cannot safely vent exhaust gases and has stopped working for your safety.	Engineer
F15	High	Your boiler is not receiving enough electricity from your home's power supply to run safely and has shut down as a result.	Engineer
F34	Medium	Your boiler has detected that the electricity supply coming into your home is unstable or vibrating at the wrong frequency.	Engineer
F35	High	Your boiler has detected that the water pressure is either too low or the sensor that measures it is not working correctly.	Yes
F37	High	Your boiler's outdoor temperature sensor is reporting an error, which may prevent your heating from working efficiently or starting up at all.	Engineer
F39	High	Your boiler has sensed it is getting too hot too quickly and has shut down to protect its internal parts from damage.	Yes
F43	High	Your boiler has detected a problem with the sensor that monitors internal water temperature, preventing the system from heating up correctly.	Engineer
F52	High	Your boiler’s internal computer brain has experienced an electronic failure and can no longer control the heating process.	Engineer

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