BoilerFaultCodes 7C Medium
Boiler Fault Code 7C
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 7C 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 has lost power while trying to clear an old error, or the reset button wasn't held down for long enough. (As reported on Ideal Maximiser SE)
Pick your boiler brand for the 7C fix
Source
Information for the 7C 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