How much does it cost to fix Biasi error code An?

Typical repair cost for the Biasi An fault is £90-280 including labour.

An High

Biasi An Fault Code

Q: What does the Biasi An fault code mean?

Your boiler is struggling to light or detect a steady flame, which means it has shut down as a safety precaution.

Also written as AN — same fault.

The Biasi An fault code means: your boiler is struggling to light or detect a steady flame, which means it has shut down as a safety precaution.. It appears on 1 Biasi model in our database.

Technical description: Flame detection error (An flasching + error flashing number).

Typical repair cost £90-280 (including labour)

DIY fix possible

Check that your gas supply is turned on and other gas appliances are workingPress and hold the 'R' Reset button for 2-3 seconds to restart the ignition sequenceEnsure the condensate pipe (outside white plastic pipe) isn't frozen if it is currently cold weather

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Biasi models that show the An fault code

Click a model for the full fault code list and model-specific repair notes.

Inovia 2020 Repair: £90-280

Source

Biasi An fault code information on this page is sourced and cross-checked against the official Biasi service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026