Low
P.06 on Vaillant ecoFIT Pure 825

Your boiler is currently in a manual maintenance mode used for filling or draining the system, rather than a failure state.

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

Filling mode check programme: The diverter valve is moved to the mid-position. The burner and pump are switched off (to fill or drain the product).

From this model's manual
Verified against the Vaillant Ecofit Pure 830 installation & service manual, page 15.
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

Check if the service/fill button was accidentally pressedTurn the boiler off at the fused spur for 60 secondsTurn the boiler back on to see if it resets to normal operation

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