What does the Keston E05 fault code mean?

Your boiler has stopped working because the internal fan, which safely pushes exhaust gases out of the flue, is not spinning correctly.

How much does it cost to fix Keston error code E05?

Typical repair cost for the Keston E05 fault is £250-450 including labour.

Fan failure – boiler cannot detect fan rotation – check fan operation and both connectors onto fan

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

Each noise points to a different fault.

Safety-critical — turn off, read this.

7 signs repair isn't worth it anymore.