BoilerFaultCodesYour boiler thinks it still sees a flame even though it has commanded the gas to turn off, which is a safety conflict.
Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now — this fault can be dangerous if ignored.
Technical description: Flame detected after gas shut off
What causes this fault?
This fault occurs when the boiler's internal sensors continue to detect a flame even after the system has commanded the gas valve to close. This is usually caused by a gas valve that is physically stuck open and leaking fuel, or a faulty control board that is misinterpreting electrical signals from the flame sensor.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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