How much does it cost to fix Baxi error code 2.2.3?

Typical repair cost for the Baxi 2.2.3 fault is £120-250 including labour.

2.2.3 High

Baxi 2.2.3 Fault Code

Q: What does the Baxi 2.2.3 fault code mean?

Your boiler has detected an issue with the settings that control how it processes the gas supply, meaning it has safely shut itself down to prevent improper operation.

Also written as 223 — same fault.

The Baxi 2.2.3 fault code means: your boiler has detected an issue with the settings that control how it processes the gas supply, meaning it has safely shut itself down to prevent improper operation.. It appears on 1 Baxi model in our database.

Technical description: Gas category

Typical repair cost £120-250 (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 2.2.3 fault code

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

825 Combi Repair: £120-250

Source

Baxi 2.2.3 fault code information on this page is sourced and cross-checked against the official Baxi service / installation manuals for each affected model.

Baxi 825 Combi manual (PDF)

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