How much does it cost to fix boiler error code 2 Red Flashes?

Typical repair cost for the boiler 2 Red Flashes fault is £100-£280 including labour.

2 Red Flashes High

Boiler Fault Code 2 Red Flashes

Also written as 2REDFLASHES — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code 2 Red Flashes appears across 2 boiler brands and 23 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has become too hot and has shut itself down as a safety precaution to prevent damage. (As reported on Main MainEco)

Pick your boiler brand for the 2 Red Flashes fix

Baxi 2 Red Flashes 21 models Main 2 Red Flashes 2 models

Source

Information for the 2 Red Flashes fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →

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