F14 Emergency

Saunier Duval F14 Fault Code

The Saunier Duval F14 fault code means: your boiler is struggling to control its internal gas supply, which prevents it from igniting safely.. It appears on 1 Saunier Duval model in our database.

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

Technical description: Gas valve drive fault
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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Saunier Duval models that show the F14 fault code

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

Source

Saunier Duval F14 fault code information on this page is sourced and cross-checked against the official Saunier Duval service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026