BoilerFaultCodesTechnical description
Ignition fault
What causes this fault?
This fault occurs when the boiler tries to light but fails three times in a row, leading to a safety shutdown. It is physically caused by a lack of gas reaching the burner or a failure in the ignition system, such as a worn-out spark electrode or a faulty gas valve. If you have a prepay meter, check that you have credit, as a lack of fuel is a frequent trigger for this error.
In extremely cold weather, this code can be triggered if the external gas regulator freezes or if there is a blockage in the condensate discharge pipe.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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