BoilerFaultCodesYour boiler is currently preparing to fire up the burner to provide heating for your home and is not an actual error code.
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 start up in heating mode
What causes this fault?
This code appears when the boiler receives a signal from your thermostat or programmer asking for central heating. It indicates that the control board is performing its internal safety checks and preparing the internal components to ignite the burner. Once the flame is successfully established, the code will disappear and be replaced by the current flow temperature.
You will see this code more frequently during autumn and winter when the central heating is used regularly to keep the home warm.
DIY fix possible
No action is required as this is a normal status operationMonitor the display to see if it changes to 'S.' status codesEnsure your room thermostat is calling for heat if you want the heating to stay on
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A boiler cover plan would cover faults like D.82 — no call-out fees, no surprises.
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