E24 Emergency

Baxi E24 Fault Code

The Baxi E24 fault code means: your boiler has detected an issue with the component that controls the gas supply, meaning it cannot safely ignite or maintain a flame to heat your home.. It appears on 3 Baxi models in our database.

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

Technical description: Gas Valve
Typical repair cost £180-350 (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 E24 fault code

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

Source

Baxi E24 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