Unknown
Er 01 on Biasi Activ A

Biasi Activ A fault code Er 01

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

What the manual says

Manufacturer manual

Lack of burner ignition on safety lockout

From this model's manual
Verified against the Biasi/Biasi Bm Biasi Concept 400 20 1 Mfs 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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All 31 fault codes on the Activ A

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

01E02E03E04E05E06E08E09E10E11E14E15E16E17E18EErEr 02Er 03Er 04Er 05Er 06Er 08Er 09Er 10Er 12Er 14Er 15Er 16Er 17Er 18

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