Your 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 – possible electrode error, defective gas valve or incorrect inlet gas pressure
What causes this fault?
This fault occurs when the boiler's control system attempts to light the burner but fails to detect a steady flame after several tries. The most common reasons include a worn-out ignition spark electrode that can no longer create a spark, or a gas valve that isn't opening correctly to allow fuel into the burner.
DIY fix possible
Check if other gas appliances in your home, like a hob, are working to ensure gas is reaching the property.Verify that your gas prepaid meter has credit, if applicable.Press the 'Reset' button on the boiler control panel once to see if the system restarts.
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 Modena HE 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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