Low
D.7 on Vaillant Combi Compact 282EB

Your boiler is displaying the current temperature setting for the 'warm start' feature, which keeps a small amount of water pre-heated so you get hot water at your taps more quickly.

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

Warm start temperature target value

DIY fix possible

Locate the hot water temperature control knob on the front panel.Turn the knob clockwise to increase the pre-heat temperature, or anti-clockwise to decrease it.Observe the display change as you adjust the target value to your preference.

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