What does the Chaffoteaux 10.i fault code mean?

Your boiler is struggling to push water through the pipes quickly enough, causing it to switch on and off repeatedly to avoid overheating.

How much does it cost to fix Chaffoteaux error code 10.i?

Typical repair cost for the Chaffoteaux 10.i fault is £90-250 including labour.

Check that all radiator valves are fully open

Rapid cycling high/low or high/low/off - Low water flow rate

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.

Lockout fault with a reset-needed pattern.

Sludge build-up — needs flushing, not bleeding.