BoilerFaultCodesYour boiler detects a flame when it shouldn't, which is causing it to shut down for safety.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: There is a flame signal without there being a flame present.
What causes this fault?
This fault occurs when the boiler's internal sensor incorrectly detects a flame after the burner has been told to switch off. This is most commonly caused by a carbon-coated or damaged sensing probe sending a false electrical signal, or a moisture-damaged control board misreading the system's status.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
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A boiler cover plan would cover faults like 30 — no call-out fees, no surprises.
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