BoilerFaultCodesTechnical description
Flame Loss
What causes this fault?
This fault occurs when the boiler's internal sensor can no longer detect a steady flame after the burner has ignited. The most common reasons are a worn-out sensing probe that can't 'see' the fire, or an unstable gas supply that causes the flame to drift and extinguish prematurely.
This fault can be more frequent during extreme winter cold, as freezing temperatures can affect gas pressure or cause moisture to interfere with the ignition components.
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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