BoilerFaultCodesYour boiler is currently operating normally and providing heat for your radiators, as this code is a status indicator rather than a breakdown.
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 in C.H. mode
What causes this fault?
This code appears because your thermostat is actively calling for heat and the boiler has successfully ignited the burner to warm up your radiators. It is a normal part of the boiler's operation and simply confirms that the internal components are working correctly to heat your home. You do not need to take any action, as the code will change once your home reaches the desired temperature.
This status code is most frequently seen during autumn and winter when the central heating is used daily to combat colder outdoor temperatures.
DIY fix possible
Check your room thermostat to see if it is calling for heatMonitor the display to see if the code changes once the house is warmNo action is required if your heating is working as intended
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A boiler cover plan would cover faults like 3 — no call-out fees, no surprises.
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