Your boiler is failing to stay lit after it tries to start up, meaning it cannot provide you with heating or hot water.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: No flame after the ignition phase
What causes this fault?
This fault occurs when the boiler successfully creates a spark and ignites the gas, but then fails to detect that the flame is actually burning. The most common reasons are a dirty or worn-out detection sensor that can't 'see' the fire, or a faulty gas valve that isn't providing a steady enough flow of fuel to keep the flame stable.
DIY fix possible
Check that your gas supply is turned on at the meterCheck if other gas appliances, like a hob, are working correctlyReset the boiler by pressing the 'Reset' button for 1 second
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like A06 — no call-out fees, no surprises.
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Ferroli Bluehelix Tech 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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