Low
S.20 on Vaillant ecoTEC plus Aquaplus

Your boiler is currently refilling the internal hot water storage tank, which happens automatically to ensure you have a steady supply of hot water.

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

Store recharging

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

S.24View →S.25View →

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