2.4 Low

British Gas 2.4 Fault Code

Also written as 24 — same fault.

The British Gas 2.4 fault code means: your boiler is temporarily pausing its operation to prevent the system from turning on and off too frequently, which protects the internal components from unnecessary wear and tear.. It appears on 1 British Gas 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: Anti-cycle time
Typical repair cost £0 (including labour)

DIY fix possible

Check that your room thermostat is set to the desired temperature.Ensure all radiator valves are open to allow heat to dissipate.Wait 15-20 minutes for the countdown timer to finish, as the boiler will likely restart automatically.

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British Gas models that show the 2.4 fault code

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

Source

British Gas 2.4 fault code information on this page is sourced and cross-checked against the official British Gas service / installation manuals for each affected model.

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