BoilerFaultCodesYour boiler is failing to light the flame needed to heat your water and radiators.
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 -flame detection
What causes this fault?
This fault occurs when the boiler attempts to start up but cannot confirm that a flame has been successfully lit. The most common reasons are that the spark isn't reaching the burner, the sensor that detects the heat is dirty or worn out, or the gas valve isn't opening correctly to provide fuel.
This fault is slightly more common in winter, as cold weather can cause moisture to affect electrical components or lead to fluctuating gas pressures in the external supply lines.
DIY fix possible
Check that your gas pre-payment meter hasn't run out of creditEnsure other gas appliances in your home, like a hob, are receiving gasPress the 'Reset' button on the boiler control panel to see if it restarts
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 04 — no call-out fees, no surprises.
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Glow-worm Xtrafast 96 120 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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