BoilerFaultCodes Overheat indicator light High
Boiler Fault Code Overheat indicator light
Also written as OVERHEATINDICATORLIGHT — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Overheat indicator light appears across 1 boiler brand and 3 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 got too hot or experienced a power cut, and it simply needs to be manually reset to start working again. (As reported on Baxi Solo 3 PFL)
Pick your boiler brand for the Overheat indicator light fix
Source
Information for the Overheat indicator light 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