BoilerFaultCodes E056 High
Boiler Fault Code E056
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E056 appears across 1 boiler brand and 4 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning The boiler's control system has lost communication with its internal computer, meaning it can no longer process instructions to heat your home. (As reported on Vokera Pinnacle System)
Pick your boiler brand for the E056 fix
Source
Information for the E056 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