BoilerFaultCodesYour boiler has failed to light because it isn't receiving gas or the spark isn't igniting the fuel.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Ignition fault
What causes this fault?
This fault occurs when the boiler attempts to start up but fails to detect a flame after several attempts. The most common reasons are a lack of gas supply reaching the unit, a worn-out spark electrode that can no longer ignite the fuel, or a faulty gas valve that isn't opening correctly.
This fault is more frequent during the first cold snap of winter, as gas valves can occasionally stick after being inactive during the summer months.
DIY fix possible
Check that your gas prepayment meter has credit (if applicable).Ensure your gas stopcock and other gas appliances like hobs are working.Press the Reset button (indicated by a flame with a cross through it) on the boiler control panel.
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 F1 — no call-out fees, no surprises.
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Glow-worm 30ci Plus 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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