Low
D.73 on Vaillant Combi Compact 282EB

Your boiler is notifying you of an adjustment to the pre-heat temperature used for quicker hot water delivery.

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

Off set for warm start target value

DIY fix possible

Navigate to the installer level settings in the digital menuLocate diagnostic code D.73Adjust the offset value (typically between -15 and +5) to your preferred setting for the warm start feature

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