F24 High

Ferroli F24 Fault Code

The Ferroli F24 fault code means: your boiler is struggling to clear exhaust gases because the fan component, which helps vent the system, is not receiving power or is failing to start.. It appears on 1 Ferroli model in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: Fan issues with wiring or power
Typical repair cost £180-350 (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 F24 fault code

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

Source

Ferroli F24 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 7 July 2026