High
LD2 on Biasi Riva Advance M96.24SM

Your boiler has detected an internal communication or wiring fault which is preventing it from firing up correctly.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Operation light 2 (as seen in wiring and voltage diagrams)

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

LD1View →LD3View →

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