BoilerFaultCodes 113 High
Boiler Fault Code 113
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 113 appears across 2 boiler brands 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 detected an unstable electricity supply, meaning the power coming into the unit is not steady enough for it to operate safely. (As reported on Ideal Logic Max Heat 2)
Pick your boiler brand for the 113 fix
Source
Information for the 113 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