BoilerFaultCodesYour boiler has failed to light the flame after several attempts, meaning it cannot provide you with 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 fault
What causes this fault?
This fault occurs when the boiler's control system attempts to light the burner but fails to detect a stable flame after several tries. It is often caused by a lack of spark, a problem with the gas supply, or dirty components that prevent the boiler from sensing that a fire has successfully started.
This fault is slightly more common in winter when increased demand can highlight underlying issues with gas pressure or when moisture buildup affects the electrical ignition components.
DIY fix possible
Check that your gas prepayment meter has credit (if applicable)Check that other gas appliances in your home, like a hob, are working correctlyPress the 'Reset' button on the boiler control panel to see if it clears the lockout
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 Test4 — no call-out fees, no surprises.
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Vokera Pinnacle 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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