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

Typical repair cost for the boiler Neon A fault is £120-220 including labour.

Neon A High

Boiler Fault Code Neon A

Also written as NEONA — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Neon A 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 has stopped working because it is unable to accurately measure the temperature of the water inside it. (As reported on Alpha Cd25)

Pick your boiler brand for the Neon A fix

Alpha Neon A 1 model

Source

Information for the Neon A 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