What does the Chaffoteaux 6.ii fault code mean?

Your boiler has stopped working because the internal pump that moves water around is stuck, meaning the burner cannot safely light.

How much does it cost to fix Chaffoteaux error code 6.ii?

Typical repair cost for the Chaffoteaux 6.ii fault is £180-350 including labour.

No main burner - Pump jammed

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.

Sludge build-up — needs flushing, not bleeding.

7 signs repair isn't worth it anymore.