BoilerFaultCodesYour boiler has tried to light but failed, meaning it cannot currently provide 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: Flame Failure & Fault Indicator Neon
What causes this fault?
This fault occurs when the boiler's control system attempts to ignite the burner but fails to detect a steady flame after several attempts. The most common reasons include a lack of gas reaching the unit, worn-out ignition sparks, or a dirty sensor that can no longer 'see' the flame even if it has lit.
This fault is more common in winter, as high demand on the gas network can cause pressure drops or moisture can freeze in the external gas meter regulator.
DIY fix possible
Check if your gas supply is active (e.g., check other gas appliances like a hob)If you have a prepaid meter, ensure you have credit and the valve is openPress and hold the reset button for at least 5 seconds
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 E01 — no call-out fees, no surprises.
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Potterton Performa 24 Eco 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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