BoilerFaultCodesYour boiler thinks it sees a flame even when the gas should be turned off, which prevents it from starting up safely.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Flame simulation.
What causes this fault?
This fault occurs when the boiler's sensors detect an electrical current that mimics a flame, even though the burner hasn't actually ignited. The most common reasons are a moisture-damaged ignition lead or a faulty electrode that is sending a false 'flame present' signal back to the main control board.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
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A boiler cover plan would cover faults like F006 — no call-out fees, no surprises.
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Could it be time for a new boiler?
If repair costs are adding up, a new energy-efficient boiler could be the smarter long-term choice.
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