How much does it cost to fix Saunier Duval error code F2?

Typical repair cost for the Saunier Duval F2 fault is £150-300 including labour.

F2 High

Saunier Duval F2 Fault Code

Q: What does the Saunier Duval F2 fault code mean?

Your boiler is struggling to breathe because it cannot effectively vent gases outside, so it has safely shut down to prevent any unsafe buildup.

The Saunier Duval F2 fault code means: your boiler is struggling to breathe because it cannot effectively vent gases outside, so it has safely shut down to prevent any unsafe buildup.. It appears on 8 Saunier Duval models in our database.

Technical description: Fan or air pressure switch fault / Air flow fault

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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Saunier Duval models that show the F2 fault code

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

Source

Saunier Duval F2 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 27 April 2026