Medium
S.25 on Vaillant Combi Compact 282EB

Your boiler is staying in its cooling-down phase for too long after you have finished using hot water.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

DHW mode – pump or fan overrun error

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.20View →S.24View →S.28View →

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