What does the Potterton Lock Out After 15 Seconds fault code mean?

Your boiler is lighting, but it cannot confirm the flame is stable, so it shuts down for safety reasons to prevent fuel from building up.

How much does it cost to fix Potterton error code Lock Out After 15 Seconds?

Typical repair cost for the Potterton Lock Out After 15 Seconds fault is £150-300 including labour.

Burner Starts, Flame Established But Goes To Lock Out After 15 Seconds

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

Safety-critical — turn off, read this.

7 signs repair isn't worth it anymore.

Break-even maths on monthly cover.