BoilerFaultCodes Hot Surface Igniter High
Boiler Fault Code Hot Surface Igniter
Also written as HOTSURFACEIGNITER — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Hot Surface Igniter appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is failing to light the internal burner because the component responsible for creating the initial spark or heat has stopped working. (As reported on Potterton Envoy Plus)
Pick your boiler brand for the Hot Surface Igniter fix
Source
Information for the Hot Surface Igniter 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