BoilerFaultCodesYour boiler is trying to start but cannot successfully light the gas to create a flame.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Gas valve opens and spark commences.
What causes this fault?
This fault occurs when the boiler attempts to ignite several times but fails to detect a sustained flame. The most common reasons are a lack of gas supply to the unit, a worn-out spark electrode that cannot create a flame, or an internal component that has failed to sense the heat.
This issue is more frequent during the first cold snap of winter when components that have been idle all summer are suddenly under heavy use.
DIY fix possible
Check that your gas prepayment meter has credit (if applicable)Verify that other gas appliances in your home, like a hob, are working correctlyEnsure the gas stopcock valve is fully openPress the 'Reset' button on the front of 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 2 — no call-out fees, no surprises.
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Ideal Response SE 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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