How much does it cost to fix Baxi error code A.02.46?

Typical repair cost for the Baxi A.02.46 fault is £120-250 including labour.

A.02.46 High

Baxi A.02.46 Fault Code

Q: What does the Baxi A.02.46 fault code mean?

Your boiler has detected a communication conflict between its internal controls, meaning it has temporarily stopped working to protect itself from an incorrect operating instruction.

Also written as A0246 — same fault.

The Baxi A.02.46 fault code means: your boiler has detected a communication conflict between its internal controls, meaning it has temporarily stopped working to protect itself from an incorrect operating instruction.. It appears on 5 Baxi models in our database.

Technical description: Device priority error - SCB BOARD NOT DETECTED

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 A.02.46 fault code

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

Source

Baxi A.02.46 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 7 July 2026