Boiler Fault Code Boiler overheat

Also written as BOILEROVERHEAT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026

Fault code Boiler overheat 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 detected that it is getting too hot and has automatically shut itself down to prevent damage or danger. (As reported on Potterton Profile 30E)