BoilerFaultCodes E131 High
Boiler Fault Code E131
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E131 appears across 2 boiler brands and 4 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler experienced a power cut or electrical blip while it was already trying to deal with an existing system error, meaning it has now lost track of what triggered the fault. (As reported on Baxi BBU 45/4)
Pick your boiler brand for the E131 fix
Source
Information for the E131 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