How much does it cost to fix boiler error code Neon 2 NOT lit?

Typical repair cost for the boiler Neon 2 NOT lit fault is £90-180 including labour.

Neon 2 NOT lit High

Boiler Fault Code Neon 2 NOT lit

Also written as NEON2NOTLIT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 31 August 2026

Fault code Neon 2 NOT lit appears across 3 boiler brands and 5 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has switched itself off because it has reached an unsafe temperature or a safety sensor has detected a fault. (As reported on Glow-worm Space Saver 30 40 50)

Pick your boiler brand for the Neon 2 NOT lit fix

Glow-worm Neon 2 NOT lit 3 models Ikon Neon 2 NOT lit 1 model Protherm Neon 2 NOT lit 1 model

Source

Information for the Neon 2 NOT lit 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 31 August 2026