Low
S.22 on Vaillant ecoFIT Pure 825

Your boiler is simply indicating that the internal water pump is currently active and circulating water, which is a normal part of its operation.

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.

What the manual says

Manufacturer manual

Pump running

From this model's manual
Verified against the Vaillant Ecofit Pure 830 installation & service manual, page 33.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

No action is required as this is a status message, not an error code.Monitor your boiler to see if it proceeds to a normal heating cycle.If the boiler remains stuck on this screen and stops providing heat, turn the boiler off and on again to restart the system.

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