BoilerFaultCodes Er14 High
Boiler Fault Code Er14
Also written as ER14 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Er14 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 detected that the water is not circulating properly through the main heating system, likely due to a blockage or a pump failure. (As reported on Biasi ActivA 18S)
Pick your boiler brand for the Er14 fix
Source
Information for the Er14 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 31 August 2026