Medium
E08 on Biasi Advance Plus 16S 25S 30S

Your boiler is having trouble reading the temperature of the cold water coming into the system, which may cause issues with getting your hot water to the right temperature.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

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

What the manual says

Manufacturer manual

D.h.w. inlet temperature probe NTC fault (for models with inlet probe)

From this model's manual
Verified against the Biasi Activ A installation & service manual, page 13.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

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

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