BoilerFaultCodesYour boiler has stopped working for safety reasons and needs to be reset to try and fire up again.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Indicates a lockout fault; requires pressing the reset switch and waiting 15 seconds between attempts.
What causes this fault?
This fault happens when the boiler attempts to start up but fails to detect a steady flame, causing it to shut down for safety. It is usually caused by a lack of fuel reaching the burner or a component failing to generate the spark needed to ignite the gas. In some cases, the boiler may actually be lighting, but a faulty sensor is failing to tell the internal computer that the flame is present.
DIY fix possible
Locate the reset switch on the control panelPress and release the reset switchWait at least 15 seconds for the boiler to attempt to restart
Find a Gas Safe engineer
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