BoilerFaultCodes Power On LED Low
Boiler Fault Code Power On LED
Also written as POWERONLED — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Power On LED appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is operating normally and is currently set to provide hot water to your taps or shower. (As reported on Halstead Ace)
Pick your boiler brand for the Power On LED fix
Source
Information for the Power On LED 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