What does the Potterton Flame Lock-out fault code mean?

Your boiler has stopped working because it cannot light the internal flame, which means you currently have no heating or hot water.

How much does it cost to fix Potterton error code Flame Lock-out?

Typical repair cost for the Potterton Flame Lock-out fault is £120-250 including labour.

Boiler has failed to ignite or maintain flame. Requires Re-set.

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.

Safety-critical — turn off, read this.