BoilerFaultCodesTechnical description
Ignition failure / no flame detected
What causes this fault?
This fault occurs when the boiler tries to start but fails to detect a steady flame after several attempts. It is usually caused by a dirty ignition probe that cannot spark correctly, a lack of gas reaching the burner, or a faulty sensor that fails to tell the boiler that the flame is actually lit.
This issue is more frequent during the first cold snap of autumn, as internal components can stick or corrode after being idle throughout the summer months.
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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