Flashing LD1 Low

Biasi 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 routine check to ensure everything is working correctly.. It appears on 1 Biasi model in our database.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description: Standard Check (no fault)
Typical repair cost £0 (including labour)

DIY fix possible

No action requiredWait for the indicator to stop flashing as it completes its cycleMonitor for any future solid red or orange lights

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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 27 April 2026