How much does it cost to fix boiler error code Neon l2?

Typical repair cost for the boiler Neon l2 fault is £0-120 including labour.

Neon l2 Low

Boiler Fault Code Neon l2

Also written as NEONL2 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Neon l2 appears across 2 boiler brands 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 correctly receiving a signal from the thermostat that the house needs heat, but it has not yet started the ignition process to fire up. (As reported on Ideal Classic NF30–NF80)

Pick your boiler brand for the Neon l2 fix

Halstead Neon l2 1 model Ideal Neon l2 1 model

Source

Information for the Neon l2 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