BoilerFaultCodesBiasi Flashing LD1 Fault Code
Also written as FLASHINGLD1 — same fault.
The Biasi Flashing LD1 fault code means: your boiler is operating normally and performing a standard system check, so there is no fault to be concerned about.. It appears on 2 Biasi models in our database.
Technical description: Standard Check (no fault)
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Biasi models that show the Flashing LD1 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Biasi Flashing LD1 fault code information on this page is sourced and cross-checked against the official Biasi service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026