Low
d.25 on Vaillant aquaPLUS

Your boiler is currently heating the internal water storage tank to ensure you have hot water ready to use.

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

Storage tank status

DIY fix possible

No action is required as this is a normal status message rather than an error.Wait for the boiler to finish the heating cycle.Check that your hot water temperature dial is set to your preferred level.

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Related fault codes

S.20View →S.24View →

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