BoilerFaultCodesYour boiler thinks it still sees a flame even though the gas supply has been turned 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 valve shut off
What causes this fault?
This fault occurs when the boiler's internal sensors continue to detect a flame even though the gas valve has been told to close. The most common reason is a gas valve that is physically stuck open or leaking, though it can also be caused by a damaged circuit board sending incorrect signals or a faulty sensor carbon-tracked with soot.
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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Worcester Bosch Greenstar 25Si is discontinued — time for a new one?
Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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