Medium
LD1, LD2 Flashing on Biasi Riva Compact 24S

Your boiler has detected a problem with the sensor that monitors hot water temperature, which means your taps may not get warm.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

Faulty D.H.W. temperature probe NTC (SM models)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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