BoilerFaultCodes C7 216 High
Boiler Fault Code C7 216
Also written as C7216 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code C7 216 appears across 1 boiler brand and 9 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler's fan is not spinning fast enough to clear out exhaust fumes safely, which has caused the system to shut down for your protection. (As reported on Worcester Bosch 30i Junior)
Pick your boiler brand for the C7 216 fix
Source
Information for the C7 216 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