What does the Chaffoteaux 8.6 fault code mean?

The internal valve used to control your boiler's gas supply is sticking, which is preventing the system from igniting properly.

How much does it cost to fix Chaffoteaux error code 8.6?

Typical repair cost for the Chaffoteaux 8.6 fault is £150-250 including labour.

Gas control tap stiff (User’s)

This is a emergency 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.

Safety-critical — turn off, read this.

7 signs repair isn't worth it anymore.