BoilerFaultCodes Boiler Safety Overheat neon High
Boiler Fault Code Boiler Safety Overheat neon
Also written as BOILERSAFETYOVERHEATNEON — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Boiler Safety Overheat neon 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 switched itself off because it has become too hot to operate safely. (As reported on Potterton Osprey CF 125)
Pick your boiler brand for the Boiler Safety Overheat neon fix
Source
Information for the Boiler Safety Overheat neon 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