BoilerFaultCodes Neon 27 High
Boiler Fault Code Neon 27
Also written as NEON27 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Neon 27 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 circulate water, either because there isn't enough water inside the system or the internal pump has stopped working. (As reported on Potterton Performa 24)
Pick your boiler brand for the Neon 27 fix
Source
Information for the Neon 27 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