BoilerFaultCodes ERROR CODE 2 High
Boiler Fault Code ERROR CODE 2
Also written as ERRORCODE2 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code ERROR CODE 2 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 has become too hot and has shut itself down as a safety precaution to prevent damage. (As reported on Ideal Icos HE)
Pick your boiler brand for the ERROR CODE 2 fix
Source
Information for the ERROR CODE 2 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