How much does it cost to fix Ferroli error code F08 – A08?

Typical repair cost for the Ferroli F08 – A08 fault is £100-280 including labour.

F08 – A08 High

Ferroli F08 – A08 Fault Code

Q: What does the Ferroli F08 – A08 fault code mean?

Your boiler has become too hot and has shut itself down as a safety precaution to prevent damage.

Also written as F08A08 — same fault.

The Ferroli F08 – A08 fault code means: your boiler has become too hot and has shut itself down as a safety precaution to prevent damage.. It appears on 3 Ferroli models in our database.

Technical description: Overtemperature protection intervention

Typical repair cost £100-280 (including labour)

DIY fix possible

Check that all radiator valves are fully openEnsure the system pressure is between 1 and 1.5 bar on the gaugePerform a reset by pressing the 'R' or 'Reset' button

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Ferroli models that show the F08 – A08 fault code

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

Source

Ferroli F08 – A08 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