BoilerFaultCodesYour boiler is operating normally; this is a status message indicating that the burner is currently lit and heating your 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 on
What causes this fault?
This code appears because your boiler is functioning exactly as it should and the burner is currently firing to provide heat. It is simply a status update letting you know that gas is being burned to heat the water for your taps or radiators. You do not need to take any action, as this is a sign of normal operation.
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.
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A boiler cover plan would cover faults like S.24 — no call-out fees, no surprises.
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