BoilerFaultCodesTechnical description
Ignition fault
What causes this fault?
This fault occurs when the boiler's control system attempts to start a flame but fails to detect one after several attempts. The most common reasons are a lack of gas reaching the burner, a worn-out spark plug that can no longer create a flame, or an internal sensor failing to recognise that the boiler has successfully lit.
This fault is more common during the first cold snap of winter, when increased demand can highlight underlying issues with the gas valve or electrodes that went unnoticed during the summer.
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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