What does the Biasi E01 fault code mean?

Your boiler is failing to light the gas or cannot detect that a flame has been successfully started.

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 in your home, like a hob, are working to ensure gas supply.

Ignition failure / No flame detection

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.