How much does it cost to fix boiler error code LD3?

Typical repair cost for the boiler LD3 fault is £0-80 including labour.

LD3 Low

Boiler Fault Code LD3

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code LD3 appears across 2 boiler brands and 3 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is currently running a self-diagnostic test or is in a temporary programming mode indicated by a yellow flashing light. (As reported on Vokera Option)

Pick your boiler brand for the LD3 fix

Biasi LD3 2 models Vokera LD3 1 model

Source

Information for the LD3 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