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 2 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 water flow or heat blockage within its internal heating system, causing it to stop working to protect itself. (As reported on Biasi Concept 400 20 1 Mfs)
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 7 July 2026