BoilerFaultCodesYour boiler has tried to light several times but has been unable to create a flame, meaning you will not have any 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: Ignition failure
What causes this fault?
This fault occurs when the boiler's control system attempts to start a flame but fails to detect one after several tries. It is often caused by a lack of gas reaching the burner, a worn-out spark electrode that can no longer create a light, or a dirty sensor that cannot 'see' the flame once it has started.
This issue can be more frequent during extreme cold spells if the external gas regulator or pipework freezes, restricting the flow of fuel to the boiler.
DIY fix possible
Check if other gas appliances, like a cooker, are working to ensure gas is reaching the propertyCheck if your gas meter has creditPress the reset button 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 0A1 — 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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