80 Flashing High

Boiler Fault Code 80 Flashing

Also written as 80FLASHING — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 80 Flashing 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 has stopped working because the amount of water inside your heating system has dropped below the required level. (As reported on Heatline Capriz 24)

Pick your boiler brand for the 80 Flashing fix

Source

Information for the 80 Flashing 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