Boiler Fault Code 261 / EA

Also written as 261EA — same fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026

Fault code 261 / EA appears across 1 boiler brand and 3 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is failing to ignite because it cannot detect a flame, likely due to a gas supply issue or a blockage in the ventilation system. (As reported on Worcester Bosch Greenstar CDi Compact)