E129
FAULT CODE
Potterton
Frequent Flame Loss — Safety Lockout
High Severity
Engineer Required
The boiler has experienced repeated flame loss during operation — a persistent version of the flame failure fault that has triggered a full lockout.
Step-by-Step Fix Guide
-
Step 1
Do not continue resetting
-
Step 2 Engineer only
Call a Gas Safe engineer to investigate the root cause of repeated flame loss
Gas Safe Reminder
Work on gas appliances must be carried out by a Gas Safe registered engineer. The steps above cover safe checks a homeowner can perform - any internal component replacement requires a qualified professional. If in doubt, always call an engineer.