What does the Biasi Er 99 fault code mean?

Your boiler has lost power or hasn't had its model type correctly configured in the internal computer.

How much does it cost to fix Biasi error code Er 99?

Typical repair cost for the Biasi Er 99 fault is £60-250 including labour.

Check if the boiler is plugged in and the fused spur switch is turned on

Boiler type (to be updated with the complete range) - No power

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

Work through these before the call-out.

Safety-critical — turn off, read this.

7 signs repair isn't worth it anymore.