BoilerFaultCodes LED 2: 0 Medium
Boiler Fault Code LED 2: 0
Also written as LED20 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code LED 2: 0 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 not detecting when you turn on a hot tap, meaning you will likely have heating but no hot water. (As reported on Ferroli Arean)
Pick your boiler brand for the LED 2: 0 fix
Source
Information for the LED 2: 0 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