BoilerFaultCodesYour boiler has tried to light itself several times but has failed, likely because there is no gas supply or the ignition part is dirty or broken.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: More than 5 start attempts without any flame formation.
What causes this fault?
This fault occurs when the boiler is unable to detect a flame after several attempts to start up. The most common reason is a lack of gas reaching the burner, often caused by a closed valve, an issue with the gas meter, or a buildup of carbon on the part that creates the spark.
This fault is slightly more common during the first cold snap of winter when gas valves that have been dormant all summer can occasionally stick.
DIY fix possible
Check if other gas appliances in your home, like a hob, are working to ensure gas is reaching the property.If you have a prepayment meter, check that you have remaining credit and the valve is open.Press the Reset button on the boiler control panel for one to two 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 é4 — no call-out fees, no surprises.
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Remeha Avanta 18V 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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