power High

Boiler Fault Code power

Also written as POWER — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code power appears across 2 boiler brands and 9 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 electrical power and cannot start any heating or hot water functions. (As reported on Grant Vortex Pro Combi)

Pick your boiler brand for the power fix

Grant power 3 models Halstead power 6 models

Source

Information for the power 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