BoilerFaultCodesYour boiler is still detecting a flame even though it has tried to turn the gas off, which is a safety conflict that requires a professional inspection.
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 to stop flowing. The most common reason is a gas valve that is physically stuck open or leaking, though it can also be caused by a sensor that has malfunctioned and is sending an incorrect 'flame present' signal to the main control board.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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A boiler cover plan would cover faults like FA — no call-out fees, no surprises.
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