How much does it cost to fix boiler error code RED fast blinking (0.2s)?

Typical repair cost for the boiler RED fast blinking (0.2s) fault is £120-250 including labour.

RED fast blinking (0.2s) High

Boiler Fault Code RED fast blinking (0.2s)

Also written as REDFASTBLINKING02S — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code RED fast blinking (0.2s) appears across 1 boiler brand and 5 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has failed to start after several repeated attempts and has now automatically shut down for safety to prevent fuel buildup. (As reported on Grant Vortex Eco)

Pick your boiler brand for the RED fast blinking (0.2s) fix

Grant RED fast blinking (0.2s) 5 models

Source

Information for the RED fast blinking (0.2s) 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 27 April 2026