43
FAULT CODE
Alpha
Loss of Flame Rectification (Type 2)
Medium Severity
Engineer Required
Persistent flame rectification loss — similar to code 38 but indicating a more established problem with the flame sensing circuit.
Step-by-Step Fix Guide
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Step 1 Engineer only
Call a Gas Safe engineer to check gas supply pressure, flame sensing electrode, flue recirculation, and gas valve settings
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.