BoilerFaultCodes Neon 28 Medium
Boiler Fault Code Neon 28
Also written as NEON28 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Neon 28 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 is struggling to detect the temperature of the water being heated, which means it will likely stop providing hot water until the faulty sensor is replaced. (As reported on Potterton Performa 24)
Pick your boiler brand for the Neon 28 fix
Source
Information for the Neon 28 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