BoilerFaultCodes.com
D.23 Low

Your boiler is currently set to summer mode, which means it is only heating your tap water and has temporarily turned off the central heating.

Technical description: Summer/Winter function
Typical repair cost: £0 (including labour)

DIY fix possible

Locate the radiator temperature dial or button on the boiler control panelTurn the dial clockwise or press the '+' button to increase the target heating temperatureCheck that the display no longer shows 'Summer' or the radiator icon with a cross through it

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