Low
P.008 on Vaillant ecoTEC plus System

Your boiler is currently refilling its internal water system, which is a normal process if you have recently topped up the pressure or serviced the unit.

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

Fillingofproductwith water

From this model's manual
Verified against the Vaillant Ecotec Plus installation & service manual, page 91.
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

Wait 5-10 minutes for the boiler to complete the automated filling sequence.Do not turn off or reset the boiler while this message is displayed.If the code persists for more than an hour, check that your external filling loop valves are fully closed.

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