BoilerFaultCodesTechnical description
Ignition fault - Flame failure during operation
What causes this fault?
This fault occurs when the boiler successfully starts but cannot maintain a steady flame, causing the system to shut down for safety. It is usually caused by a dirty or worn-out sensing probe that can no longer 'see' the fire, or a faulty gas valve that isn't providing a consistent flow of fuel. In some cases, a build-up of carbon or debris on the burner can also interfere with the combustion process.
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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