How much does it cost to fix Baxi error code Section F?

Typical repair cost for the Baxi Section F fault is £150-350 including labour.

Section F High

Baxi Section F Fault Code

Q: What does the Baxi Section F fault code mean?

Your boiler is failing to ignite because it cannot receive the gas supply it needs to produce a flame.

Also written as SECTIONF — same fault.

The Baxi Section F fault code means: your boiler is failing to ignite because it cannot receive the gas supply it needs to produce a flame.. It appears on 2 Baxi models in our database.

Technical description: No gas at burner or gas valve failure

Typical repair cost £150-350 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Baxi models that show the Section F fault code

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

105e Repair: £150-350
System Repair: £150-350

Source

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

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026