Ferroli Repair Service

What does error A14 mean on a Ferroli boiler?

Error A14 on a Ferroli boiler indicates the flue extraction duct safety device has activated - this occurs when fault F07 (high flue gas temperature) has been generated three times within the last 24 hours. Contact a Gas Safe registered engineer to inspect the flue system and heat exchanger.

What does error A23 mean on a Ferroli boiler?

Error A23 on a Ferroli boiler indicates a PCB parameter error or water pressure loss. Check the system pressure gauge - if below 1.0 bar, repressurise using the filling loop. If pressure is normal, contact a Gas Safe registered engineer as the PCB may need attention.

What does error A07 mean on a Ferroli boiler?

Error A07 on a Ferroli boiler indicates high flue gas temperature - the flue gas probe has detected excessive temperature in the exhaust system. This may indicate a blocked or restricted flue, heat exchanger issues, or a faulty flue probe. Contact a Gas Safe registered engineer to inspect the flue system and heat exchanger.

What does error A15 mean on a Ferroli boiler?

Error A15 on a Ferroli boiler means the air pressure switch fault (F05) has occurred five times within 24 hours, triggering a lockout. This indicates a persistent underlying problem - do not keep resetting the boiler and contact a Gas Safe registered engineer to diagnose and repair the root cause.

What does error A11 mean on a Ferroli boiler?

Error A11 on a Ferroli boiler indicates a return sensor fault causing a permanent lockout - the sensor is damaged or its wiring is shorted or disconnected. Contact a Gas Safe registered engineer to test the sensor and wiring connections.

Does my Ferroli boiler have frost protection?

Ferroli boilers include a built-in antifreeze system that activates automatically when the system water temperature falls below approximately 6°C. The boiler will fire briefly to prevent freezing of internal components. This protection only works while the boiler has electricity and gas supply. For extended winter absences, consider draining the system or adding approved heating system antifreeze.

What does it mean when my Ferroli boiler is in lockout?

A boiler lockout is a safety feature where the boiler shuts down completely due to a detected fault. Common triggers include low water pressure, ignition failure, no gas supply, overheating, or circulation problems. The display will typically show an error code indicating the cause.

How do I repressurise my Ferroli boiler?

To repressurise your Ferroli boiler, first switch off the boiler and allow it to cool for an hour or two. Locate the filling loop (usually a silver braided hose beneath the boiler), open the valves slowly while watching the pressure gauge, and stop when the reading reaches 1.0-1.5 bar. Close the valves and restart the boiler.

Why are my radiators cold at the top?

Radiators that are cold at the top but warm at the bottom typically have trapped air in the system. This is easily fixed by bleeding the radiators using a radiator key. Insert the bleed key into the valve at the top corner of the radiator and turn anticlockwise until you hear air escaping, then close once water flows steadily.

What should I do if I smell gas near my Ferroli boiler?

If you smell gas, do not operate any electrical switches or appliances, do not light any flames, open windows and doors to ventilate if safe to do so, turn off the gas supply at the meter if you can access it safely, leave the property immediately, and call the National Gas Emergency Service from outside the building. Do not re-enter until the property has been checked by a qualified professional.