BoilerFaultCodesTechnical description
False flame
What causes this fault?
This fault occurs when the boiler's sensors detect a flame signal at a time when the burner should be switched off. It is usually caused by a dirty or damaged sensing electrode sending an incorrect electrical signal, or a gas valve that is failing to close fully and allowing a small amount of fuel to leak through. In some cases, the main control board may be misinterpreting these signals due to an internal electrical fault.
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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