What does the Chaffoteaux 8.1 fault code mean?

Your boiler is unable to start the pilot flame, which means it cannot provide any heating or hot water until the ignition process is successful.

How much does it cost to fix Chaffoteaux error code 8.1?

Typical repair cost for the Chaffoteaux 8.1 fault is £100-280 including labour.

Check if your gas supply is turned on and other gas appliances are working

Pilot does not light

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

Older boilers — thermocouple, draught, gas supply.

Almost always a stuck diverter valve on combis.

Lockout fault with a reset-needed pattern.