Low
d.13 on Vaillant ecoTEC Plus 625

Your boiler is simply reporting that the internal pump responsible for moving hot water is currently resting or has just switched on.

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

Status of the hot water circuit's circulation pump: off/on

Engineer required

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

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Related fault codes

F.22View →F.75View →

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