Your boiler is currently set to its winter mode, meaning it is prepared to provide both central heating and hot water as normal.
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: WINTER SETTING
What causes this fault?
This code is not actually a fault, but a status indicator telling you that the boiler is in its standard winter operation mode. It appears when the selector dial is turned to the position that allows the boiler to provide both heating for your radiators and hot water for your taps. Your boiler has not stopped; it is simply confirming that it is ready to respond to your thermostat.
This code is typically seen during the colder months when you switch your boiler from 'summer mode' to 'winter mode' to enable your central heating.
DIY fix possible
No action is required as this is a status indicator rather than a fault.If you wish to turn off the central heating, turn the selector dial to the 'Sun' icon or 'S' setting.Ensure your external thermostat or programmer is calling for heat if your radiators are still cold.
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