Low
D.23 on Vaillant Combi Compact 282EB

Your boiler is currently set to summer mode, which means your hot water is working but your central heating has been deactivated.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

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

Summer/Winter function

DIY fix possible

Locate the radiator symbol control knob on the front panel.Turn the knob clockwise to the desired temperature setting to activate winter mode.Check that your room thermostat is turned up to call for heat.

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Related fault codes

D.22View →S.31View →

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