How much does it cost to fix boiler error code A54 – A55 – A63?

Typical repair cost for the boiler A54 – A55 – A63 fault is £250-£450 including labour.

A54 – A55 – A63 High

Boiler Fault Code A54 – A55 – A63

Also written as A54A55A63 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code A54 – A55 – A63 appears across 1 boiler brand and 3 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler’s internal control computer has developed a technical error and can no longer communicate with the rest of the unit, causing the system to shut down. (As reported on Ferroli iBoiler 28)

Pick your boiler brand for the A54 – A55 – A63 fix

Ferroli A54 – A55 – A63 3 models

Source

Information for the A54 – A55 – A63 fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026