BoilerFaultCodesYour boiler is not receiving gas or is unable to light a flame to provide heating and 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: Appliance does not start: Attempts to ignite during start failed
What causes this fault?
This fault occurs when the boiler tries to light itself several times but fails to detect a flame, causing the system to shut down for safety. The most common reasons include a lack of gas reaching the unit, a blocked burner, or a component failure in the ignition system that prevents the initial spark. It can also be triggered by external issues like a shut-off gas meter or a temporary interruption in your local gas supply.
In freezing temperatures, this fault can be caused by a frozen gas meter regulator or a blocked condensate pipe, both of which prevent the boiler from completing its ignition cycle.
DIY fix possible
Check if other gas appliances, like your hob, are working to ensure gas is reaching the property.If you have a prepaid meter, check that you have enough credit.Press the 'Flame' or 'Reset' button on the boiler controls for five 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 F.28 — no call-out fees, no surprises.
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Could it be time for a new boiler?
If repair costs are adding up, a new energy-efficient boiler could be the smarter long-term choice.
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