BoilerFaultCodes LED 2 (B) Low
Boiler Fault Code LED 2 (B)
Also written as LED2B — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code LED 2 (B) 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 correctly detects that a hot water tap is currently running, so it is firing up to provide you with hot water. (As reported on Ferroli Hawk II)
Pick your boiler brand for the LED 2 (B) fix
Source
Information for the LED 2 (B) 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