What does the Biasi E01 fault code mean?

Your boiler has failed to light the flame, which means it has shut down for safety to prevent gas from flowing without being burned.

How much does it cost to fix Biasi error code E01?

Typical repair cost for the Biasi E01 fault is £100-350 including labour.

Check if other gas appliances, like a hob, are working to ensure gas is reaching the property

Lack of burner ignition on safety lockout

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Lockout fault with a reset-needed pattern.

Older boilers — thermocouple, draught, gas supply.

7 signs repair isn't worth it anymore.