Your boiler is operating normally and is currently in the process of firing up to provide heat or hot water.
This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.
Technical description: Burner ignited
What causes this fault?
This is a normal operational status and does not indicate a breakdown or a malfunction. It occurs when the boiler has successfully confirmed the presence of a flame and is currently burning gas to heat your home or water. You will see this code every time the boiler starts up correctly and begins its heating cycle.
DIY fix possible
This fault may be fixable without an engineer. Check your manual first.
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 S.14 — no call-out fees, no surprises.
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Vaillant Thermocompact 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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