What does the Atag 151 fault code mean?

Your boiler has shut down because it cannot control the fan that safely clears exhaust gases, or the internal control board has developed a fault.

How much does it cost to fix Atag error code 151?

Typical repair cost for the Atag 151 fault is £250-£650 including labour.

Fan error (speed control is not achieved or is out of range) or control unit defective

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.