BoilerFaultCodesYour boiler has failed to light the flame, which means you currently have no 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 burner ignition
What causes this fault?
This fault occurs when the boiler attempts to start up but cannot confirm that a flame has been established. The most common reasons are a lack of gas reaching the burner, a worn-out ignition spark, or a sensor failing to detect the heat even if the flame did briefly light.
This issue can occur during extreme cold snaps if the external gas regulator or meter freezes, restricting the flow of gas to the property.
DIY fix possible
Check if your gas supply is turned on and other gas appliances are workingPress the 'Reset' button on the boiler control panel for 1 secondCheck that your condensate pipe (outside) has not frozen during cold weather
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 A01 — 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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