BoilerFaultCodesIdeal Burner on Fault Code
Also written as BURNERON — same fault.
The Ideal Burner on fault code means: your boiler is operating normally and is currently firing to provide heat.. It appears on 2 Ideal models in our database.
Technical description: Boiler status neon
What causes the Ideal Burner on fault?
This is not a fault; it is simply a status indicator showing that the boiler has received a request for heat and the burner is currently lit. The boiler is functioning exactly as intended to heat your radiators or hot water cylinder. Once the thermostat is satisfied or the timer turns off, this light will go out as the boiler stops firing.
This indicator is most frequently seen during colder months when the heating is programmed to run for longer periods to maintain a comfortable temperature.
DIY fix possible
No action is required as this is a status indicator rather than a fault.Ensure your thermostat is set to the desired temperature.Check that your programmers or timers are set to 'On' if you require heat.
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Gas Safe Register →Ideal models that show the Burner on fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ideal Burner on fault code information on this page is sourced and cross-checked against the official Ideal service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026