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

Your boiler has failed to light the flame or has lost its flame during operation, causing it to shut down for safety.

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

Typical repair cost for the Biasi ER 01 + Reset fault is £100-280 including labour.

Check if your gas supply is active by testing another gas appliance like a hob

N/A

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.