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

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

A54 – A55 – A63 High

Ferroli A54 – A55 – A63 Fault Code

Q: What does the Ferroli A54 – A55 – A63 fault code mean?

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.

Also written as A54A55A63 — same fault.

The Ferroli A54 – A55 – A63 fault code means: 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.. It appears on 3 Ferroli models in our database.

Technical description: Printed circuit board (PCB) AGC01 fault

Typical repair cost £250-£450 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Ferroli models that show the A54 – A55 – A63 fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Ferroli A54 – A55 – A63 fault code information on this page is sourced and cross-checked against the official Ferroli service / installation manuals for each affected model.

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