Boiler Fault Code 2/8/0

Also written as 280 — same fault.

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

Fault code 2/8/0 appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler's main internal computer has developed a critical internal error and can no longer safely control the heating system. (As reported on Worcester Bosch GB162)