BoilerFaultCodesYour boiler is trying to start up but is failing to light the burner, 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: When the fan has reached the starting speed, the burner is ignited by means of electrical sparks.
What causes this fault?
This fault occurs because the boiler's control system cannot detect a flame after several attempts to light the burner. The most common reasons are a lack of gas supply to the unit, a worn-out ignition spark plug, or a component failure that prevents the gas from reaching the burner assembly.
This fault can occur more frequently during the first cold snap of winter when gas valves that have been idle over summer may stick or struggle to operate correctly.
DIY fix possible
Check if other gas appliances, like a cooker, are working to confirm gas supplyEnsure your gas meter has credit if you have a pre-payment meterPress the Reset button once to see if the boiler restarts
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
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A boiler cover plan would cover faults like 3 — 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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