BoilerFaultCodes Er06 High
Boiler Fault Code Er06
Also written as ER06 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Er06 appears across 1 boiler brand and 3 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 cannot correctly read the temperature of the water circulating through your heating system. (As reported on Biasi Concept 400 20 1 Mfs)
Pick your boiler brand for the Er06 fix
Source
Information for the Er06 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