BoilerFaultCodes 279 / F0 High
Boiler Fault Code 279 / F0
Also written as 279F0 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 279 / F0 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's computer is having trouble reading its internal sensors, which is causing it to shut down for safety because it cannot accurately monitor temperatures. (As reported on Worcester Bosch Greenstar CDi Compact)
Pick your boiler brand for the 279 / F0 fix
Source
Information for the 279 / F0 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