BoilerFaultCodes Neon 2 Low
Boiler Fault Code Neon 2
Also written as NEON2 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Neon 2 appears across 3 boiler brands and 6 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is correctly receiving a signal to turn on and provide heating, which is a normal indicator of operation and not typically a fault on this specific model. (As reported on Ideal Classic NF30–NF80)
Pick your boiler brand for the Neon 2 fix
Source
Information for the Neon 2 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