F26 High

Ferroli F26 Fault Code

The Ferroli F26 fault code means: your boiler has tried to light the burner several times but failed, meaning it cannot provide heat or hot water until the ignition system is looked at.. It appears on 4 Ferroli models 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: No flame after the ignition phase (5 times in 4 min.)
Typical repair cost £150-300 (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 F26 fault code

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

Source

Ferroli F26 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