Low
Er 08 on Biasi Advance Plus 16S

Your boiler has lost the ability to read the outside temperature, meaning it cannot automatically adjust your heating performance based on the weather.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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.

What the manual says

Manufacturer manual

Faulty external temperature probe NTC (if fitted)

From this model's manual
Verified against the Biasi/Biasi Advance Plus 16s 25s 30s installation & service manual.
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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Related fault codes

Er 01View →Er 02View →

All 23 fault codes on the Advance Plus 16S

Seeing a different code? Every code this model can display, in one place.

01E02E03E04E05E06E08E09E10E11E14EErEr / RESETEr 01Er 02Er 03Er 04Er 05Er 06Er 09Er 10Er 14

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