BoilerFaultCodes Er16 High
Boiler Fault Code Er16
Also written as ER16 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Er16 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 stopped working because it is unable to accurately measure the temperature of the water circulating through your heating system due to a faulty sensor connection. (As reported on Biasi Concept 400 20 1 Mfs)
Pick your boiler brand for the Er16 fix
Source
Information for the Er16 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