BoilerFaultCodes 7 01 Medium
Boiler Fault Code 7 01
Also written as 701 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 7 01 appears across 1 boiler brand and 13 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is struggling to read the temperature for a secondary heating zone, meaning that specific part of your home may not heat up correctly. (As reported on Ariston E-Combi One)
Pick your boiler brand for the 7 01 fix
Source
Information for the 7 01 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