BoilerFaultCodes 157 High
Boiler Fault Code 157
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 157 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 electronic control system is failing to communicate correctly with its internal temperature sensors, causing it to stop operating as a safety precaution. (As reported on Firebird Envirogreen)
Pick your boiler brand for the 157 fix
Source
Information for the 157 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