210 High

Boiler Fault Code 210

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 210 appears across 2 boiler brands and 6 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has detected an issue with the internal configuration or settings related to how it burns gas, meaning it has shut down as a safety precaution to prevent improper operation. (As reported on Ferroli Combi 77 FF Popular)

Pick your boiler brand for the 210 fix

Ferroli 210 1 model Worcester Bosch 210 5 models

Source

Information for the 210 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