BoilerFaultCodesYour boiler is currently operating normally and the burner is lit 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 on
What causes this fault?
This is a normal status code rather than a fault, indicating that the boiler has successfully ignited the burner to heat your home or water. It shows that the internal gas valve has opened and the electrodes have created a flame to start the heating process. You do not need to take any action, as this confirms the appliance is operating as intended.
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.24 — no call-out fees, no surprises.
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