How much does it cost to fix Biasi error code ER 01 + Reset?

Typical repair cost for the Biasi ER 01 + Reset fault is £100-£320 including labour.

ER 01 + Reset High

Biasi ER 01 + Reset Fault Code

Q: What does the Biasi ER 01 + Reset fault code mean?

Your boiler has failed to light the gas flame or cannot detect that it is lit, causing the system to shut down for safety.

Also written as ER01RESET — same fault.

The Biasi ER 01 + Reset fault code means: your boiler has failed to light the gas flame or cannot detect that it is lit, causing the system to shut down for safety.. It appears on 11 Biasi models in our database.

Technical description: N/A

Typical repair cost £100-£320 (including labour)

DIY fix possible

Check that your gas supply is turned on and other gas appliances are workingPress and hold the reset button for a few secondsIf you have a prepaid meter, ensure you have sufficient credit

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Biasi models that show the ER 01 + Reset fault code

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

Source

Biasi ER 01 + Reset 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