29.30 Low

Baxi 29.30 Fault Code

Also written as 2930 — same fault.

The Baxi 29.30 fault code means: your boiler is operating at its maximum heating capacity and is flagging this as a status notification rather than a breakdown.. It appears on 1 Baxi model in our database.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description: Heat Output (Non Condensing 70° C Mean Water Temp) Max

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 29.30 fault code

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

Source

Baxi 29.30 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