BoilerFaultCodes Flashing LD2 High
Boiler Fault Code Flashing LD2
Also written as FLASHINGLD2 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Flashing LD2 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 low water pressure or a circulation issue, preventing it from heating up to protect the system. (As reported on Biasi Riva Compact 24S)
Pick your boiler brand for the Flashing LD2 fix
Source
Information for the Flashing LD2 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