BoilerFaultCodes No display, boiler inactive High
Boiler Fault Code No display, boiler inactive
Also written as NODISPLAYBOILERINACTIVE — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code No display, boiler inactive 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 has lost all power and is completely unresponsive, meaning it cannot provide any heating or hot water until the electrical connection is restored. (As reported on Vokera Pinnacle)
Pick your boiler brand for the No display, boiler inactive fix
Source
Information for the No display, boiler inactive 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