BoilerFaultCodes Er 06 Medium
Boiler Fault Code Er 06
Also written as ER06 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Er 06 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 is having trouble measuring the temperature of your hot water, which usually results in the water being stone cold or not reaching the right temperature. (As reported on Biasi Advance 25C)
Pick your boiler brand for the Er 06 fix
Source
Information for the Er 06 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