BoilerFaultCodes Er07+ Medium
Boiler Fault Code Er07+
Also written as ER07 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Er07+ 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's hot water sensor has failed, meaning it cannot accurately measure or control the temperature of the water coming out of your taps. (As reported on Biasi Activa)
Pick your boiler brand for the Er07+ fix
Source
Information for the Er07+ 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