BoilerFaultCodesYour boiler is failing to light the gas flame or cannot detect that the flame has started, so it has shut down for safety.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Ignition, pilot or flame proving fault
What causes this fault?
This fault occurs when the boiler tries to start but fails to either generate a spark or open the gas flow to create a flame. The most common reasons are a worn-out ignition electrode that can no longer create a spark or a faulty gas valve that isn't letting fuel into the burner.
DIY fix possible
Check if other gas appliances, like a cooker hob, are working to ensure gas is reaching the property.Verify that your gas pre-payment meter (if applicable) has credit.Turn the boiler selector switch to 'Reset' for 5 seconds, then back to the heater/hot water setting.
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
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