BoilerFaultCodesYour boiler is not receiving the gas it needs to light, meaning it cannot provide 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: No gas supply.
What causes this fault?
This fault occurs when the boiler's internal safety sensors detect that a flame hasn't been established after several attempts to light. The most common reasons are a lack of gas reaching the unit, a faulty component failing to create a spark, or the gas valve not opening correctly to allow fuel into the burner.
This issue can occur in winter if the external gas meter regulator freezes, restricting the flow of gas to the boiler during periods of high demand.
DIY fix possible
Check if your gas emergency control valve is turned on.If you have a prepayment meter, check that you have enough credit.Try lighting another gas appliance, like a hob, to see if the gas supply is active.
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 A(1) — no call-out fees, no surprises.
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Potterton Flamingo RS40 RS50 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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