BoilerFaultCodesTechnical description
Flame loss
What causes this fault?
This fault occurs when the boiler's control system cannot detect a steady flame, causing it to shut down for safety. It is often caused by a lack of fuel reaching the burner, a dirty internal component that sensors the heat, or a blockage in the pipe that carries away waste liquid.
This fault is more common in freezing winter temperatures, as the external condensate pipe can freeze and prevent the boiler from lighting.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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